Learn how to check if secure boot is enabled in Windows 11 or 10 using the System Information tool (msinfo32) and verify Secure Boot status instantly.
Learning how to check if Secure Boot is enabled takes less than a minute with Windows System Information. Press Windows + R, type msinfo32, and look for Secure Boot State under System Summary. If the value says On, Secure Boot is enabled and actively protecting the Windows startup process.
Secure Boot is a security feature built into modern UEFI firmware. It verifies the digital signatures of important boot components before allowing them to run, helping block unauthorized bootloaders, bootkits, and other malicious software that may attempt to start before Windows security becomes active.
This guide explains how to check if Secure Boot is enabled in Windows 11 and Windows 10 using five reliable methods. It also explains what the On, Off, and Unsupported results mean, why Secure Boot may appear enabled in the BIOS but inactive in Windows, and how to activate it without accidentally making Windows unbootable.
Checking the status is safe and does not change your computer. However, after learning how to check if Secure Boot is enabled, avoid changing UEFI settings, boot mode, disk partitions, or Secure Boot keys without proper preparation. These changes can affect Windows startup and trigger BitLocker recovery, so back up important files and locate your recovery key first.
If you want to check whether Secure Boot is enabled:
msinfo32Results:
| Status | Meaning |
|---|---|
| On | Secure Boot enabled |
| Off | Supported but disabled |
| Unsupported | Not active in current configuration |
For most users, learning how to check if Secure Boot is enabled begins and ends with System Information because it shows the result without changing any settings.
Follow these steps:
Interpret the result as follows:
| Secure Boot State | What It Means |
| On | Secure Boot is enabled and active |
| Off | The computer supports Secure Boot, but it is disabled or inactive |
| Unsupported | Windows cannot use Secure Boot in the current configuration |
Also check BIOS Mode in the same window. It should normally say UEFI for Secure Boot to work.
If BIOS Mode says Legacy, do not immediately change it to UEFI. The Windows installation and system disk may need to be prepared first.
These key points summarize how to check if Secure Boot is enabled and what to review before making firmware changes.
Over the past several years, we have worked with Windows 10 and Windows 11 systems from Dell, HP, Lenovo, ASUS, Acer, MSI, Gigabyte, and Microsoft Surface devices. In our testing, the most common cause of Secure Boot problems is not Secure Boot itself, but Windows running in Legacy BIOS mode or systems configured with Compatibility Support Module (CSM). Before changing firmware settings, always verify BIOS Mode, TPM status, and BitLocker recovery access.
Before learning how to check if Secure Boot is enabled, it helps to understand what the feature verifies during startup.
Secure Boot is a security standard supported by UEFI firmware. It helps establish a trusted startup process between the computer’s firmware and the operating system.
When you turn on the computer, the firmware checks the digital signatures of startup components such as Windows Boot Manager. If a component is correctly signed by a trusted authority and has not been improperly modified, the startup process continues.
If the firmware cannot verify a component, it may block that component and display a security or signature error.
Secure Boot is not a replacement for antivirus software, Windows updates, BitLocker, strong passwords, or safe browsing. It protects a specific part of the startup process and works best as one layer within a broader security strategy.
| Requirement | Required |
|---|---|
| TPM 2.0 | Yes |
| UEFI Firmware | Yes |
| Secure Boot Capability | Yes |
| 64-bit CPU | Yes |
| 4 GB RAM | Yes |
| 64 GB Storage | Yes |
Knowing how to check if Secure Boot is enabled is useful for security checks, Windows 11 compatibility, gaming errors, and post-BIOS-update troubleshooting.
People commonly search for how to check if Secure Boot is enabled for the following reasons.
When Windows 11 eligibility is the concern, how to check if Secure Boot is enabled becomes part of a broader review that also includes UEFI mode and TPM 2.0.
Windows 11 requires UEFI firmware with Secure Boot capability. If the PC Health Check app says a computer does not meet Windows 11 requirements, the boot mode or firmware configuration may be responsible.
For games that require a trusted startup environment, how to check if Secure Boot is enabled can quickly confirm whether a missing security requirement is causing the launch error.
Some competitive games and anti-cheat systems require both Secure Boot and TPM 2.0. A game may refuse to open even when the computer otherwise meets its hardware requirements.
A practical reason to learn how to check if Secure Boot is enabled is to verify that the firmware is actively rejecting untrusted startup components.
Checking the setting confirms whether the firmware is actively validating trusted startup software.
After firmware changes, repeating the steps for how to check if Secure Boot is enabled helps confirm that the update did not reset the setting.
A BIOS update, firmware reset, motherboard replacement, operating-system installation, or CMOS reset may alter Secure Boot settings.
When Windows Security displays a warning, how to check if Secure Boot is enabled through a second tool helps distinguish a real firmware issue from a reporting problem.
Windows Security may recommend enabling Secure Boot or completing a Secure Boot certificate update.
On a second-hand PC, how to check if Secure Boot is enabled should be part of the initial security and compatibility review.
Secure Boot may have been disabled by a previous owner, repair technician, custom operating-system installation, or dual-boot configuration.
The best method for how to check if Secure Boot is enabled depends on whether you want a quick answer, a command-line result, or direct firmware confirmation.
| Method | Difficulty | Admin Rights Required | Restart Required | Best For |
| System Information | Easy | No | No | Most Windows users |
| Windows Security | Easy | No | No | Visual status and certificate information |
| PowerShell | Moderate | Yes | No | A direct True or False result |
| Windows Registry | Moderate | Usually no | No | Secondary verification |
| UEFI firmware | Moderate | No Windows login required | Yes | Confirming the firmware setting |
For beginners asking how to check if Secure Boot is enabled, System Information is usually the clearest and safest method.
System Information is the recommended method because it shows the Secure Boot state and Windows boot mode in the same window.
Steps
msinfo32
You may need to scroll down to locate both entries.
| BIOS Mode | Secure Boot State | Meaning |
| UEFI | On | Secure Boot is enabled and active |
| UEFI | Off | Secure Boot is supported but inactive |
| Legacy | Unsupported | Windows is starting through Legacy BIOS or CSM |
| UEFI | Unsupported | The firmware, keys, hardware, or virtual environment may not expose Secure Boot correctly |
Understanding BIOS Mode is essential when learning how to check if Secure Boot is enabled, because Secure Boot normally requires UEFI rather than Legacy mode.
For a standard Windows Secure Boot configuration, BIOS Mode should say UEFI.
If it says Legacy, Windows is using the older BIOS startup method. Secure Boot cannot normally operate while Windows is starting in Legacy mode.
Do not simply change the firmware setting from Legacy to UEFI. If the system disk is configured for MBR or lacks valid UEFI boot files, Windows may fail to start.
If msinfo32 is unavailable, you can still follow other methods for how to check if Secure Boot is enabled without changing the firmware.
Try one of these alternatives:
Access may be restricted on some organization-managed computers.
Windows Security offers another visual method for how to check if Secure Boot is enabled, especially on updated Windows 11 devices.
Windows Security can display information about firmware-based security features.
Windows 11 steps
You can also use:
Settings > Privacy & security > Windows Security > Device security
Windows 10 steps
The alternative path is:
Settings > Update & Security > Windows Security > Device security
A missing panel does not end the process of how to check if Secure Boot is enabled; System Information and PowerShell can provide a clearer answer.
The section may be missing because:
Use System Information and PowerShell to cross-check the result.
For administrators and advanced users, PowerShell is a fast command-line option for how to check if Secure Boot is enabled.
PowerShell provides a direct answer and is useful for advanced users or technicians.
Steps
Confirm-SecureBootUEFI
| PowerShell Result | Meaning |
| True | Secure Boot is enabled |
| False | Secure Boot is supported but disabled |
| Cmdlet not supported on this platform | Windows may be using Legacy BIOS, or the platform may not support the command |
| Access or privilege error | PowerShell was not opened as administrator |
When the command fails, continue troubleshooting how to check if Secure Boot is enabled by confirming administrator access, PowerShell availability, and UEFI support.
Open Windows Terminal as an administrator and make sure you are using a PowerShell tab.
Security policies may prevent the command from reading UEFI information on managed business or school devices.
The Registry method for how to check if Secure Boot is enabled is best used as a secondary confirmation rather than the primary test.
The Registry provides another way to verify the state, although System Information and PowerShell are easier to interpret.
Steps
regedit
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecureBoot\State
UEFISecureBootEnabled
| Value | Meaning |
| 1 | Secure Boot is enabled |
| 0 | Secure Boot is disabled |
| Value is missing | The information may not be available in the current configuration |
Do not edit this value to try to turn on Secure Boot. It reports the firmware state to Windows; it does not control the UEFI feature.
Command Prompt provides a compact variation of how to check if Secure Boot is enabled by reading the same Windows Registry value.
Open Command Prompt and run:
reg query HKLM\SYSTEM\CurrentControlSet\Control\SecureBoot\State /v UEFISecureBootEnabled
A result containing 0x1 generally indicates enabled. A result containing 0x0 generally indicates disabled.
Direct firmware inspection is the most detailed approach to how to check if Secure Boot is enabled, although it requires a restart.
Checking the firmware directly is helpful when Windows reports that Secure Boot is off or unsupported.
Although many people call the firmware interface “BIOS,” most modern Windows computers use UEFI.
Using the startup key is useful for how to check if Secure Boot is enabled when Windows cannot open UEFI Firmware Settings.
You may also press a manufacturer-specific key immediately after turning on the computer.
Common keys include:
Because firmware layouts differ, how to check if Secure Boot is enabled may involve a different menu path on Dell, HP, Lenovo, ASUS, Acer, MSI, Gigabyte, or Surface devices.
| Manufacturer | Common Startup Key | Possible Menu Location |
| Dell | F2 | Boot Configuration, Security or Secure Boot |
| HP | F10 | Boot Options or Secure Boot Configuration |
| Lenovo | F1 or F2 | Security > Secure Boot |
| ASUS laptop | F2 | Security or Boot > Secure Boot |
| ASUS motherboard | Delete or F2 | Advanced Mode > Boot > Secure Boot |
| Acer | F2 | Security or Boot |
| MSI | Delete | Settings > Security or Windows OS Configuration |
| Gigabyte | Delete | Boot, BIOS or Settings |
| Microsoft Surface | Hold Volume Up while pressing Power | Security or Secure Boot Configuration |
Menu locations vary between models and firmware versions. Check the official manual for the exact computer or motherboard before changing anything.
Interpreting the result is the next step after learning how to check if Secure Boot is enabled.
If your result is On, you have completed how to check if Secure Boot is enabled, and no firmware change is normally needed.
This means:
No action is normally required.
If your result is Off, how to check if Secure Boot is enabled has confirmed that support exists but the feature is not currently active.
This generally means the device supports Secure Boot, but the feature is not active.
Possible reasons include:
When the result is Unsupported, how to check if Secure Boot is enabled should continue with a review of BIOS Mode, CSM, hardware support, and virtualization settings.
This does not always mean that the motherboard is physically incapable of supporting Secure Boot.
Common causes include:
Check BIOS Mode first. If it says Legacy, the boot configuration is the most likely explanation.
This decision table turns how to check if Secure Boot is enabled into a clear next-step workflow.
| Your Result | Recommended Next Step |
| BIOS Mode: UEFI; Secure Boot: On | No change is required |
| BIOS Mode: UEFI; Secure Boot: Off | Check Secure Boot, CSM, OS Type, and firmware mode |
| BIOS Mode: Legacy; Secure Boot: Unsupported | Check the disk partition style before considering UEFI conversion |
| BIOS Mode: UEFI; Secure Boot: Unsupported | Update firmware and check manufacturer support |
| BIOS says enabled; Windows says Off | Check Setup Mode, CSM, Platform Key, and Standard Mode |
| Secure Boot causes a violation error | Restore the previous working configuration and follow official recovery guidance |
This mismatch is one of the most important troubleshooting cases in any guide about how to check if Secure Boot is enabled.
A firmware menu can show Secure Boot as enabled while Windows reports Secure Boot State: Off.
This usually means the option is enabled, but one or more conditions required for enforcement are not satisfied.
Open msinfo32 and verify that BIOS Mode says UEFI.
If it says Legacy, Secure Boot cannot become active in the current Windows boot configuration.
Disable CSM or Legacy Support
Look for options such as:
Secure Boot normally requires these features to be disabled.
Do not disable them until you confirm that Windows and the system disk are ready for UEFI boot.
Check the OS Type
Some motherboards provide options such as:
For a normal Windows installation, Windows UEFI Mode is usually the appropriate option.
Check Secure Boot Mode
Most home users should use Standard Mode.
Custom Mode allows manual management of Secure Boot keys. An incomplete or incorrect Custom Mode configuration may leave Secure Boot inactive.
Check Setup Mode and User Mode
The firmware may show:
Secure Boot normally requires a valid Platform Key and an enforcing mode such as User Mode.
Setup Mode and User Mode can change the answer to how to check if Secure Boot is enabled, even when the BIOS toggle itself says Enabled.
Setup Mode
Setup Mode generally means that the Platform Key is not enrolled.
The BIOS may allow Secure Boot configuration, but signature enforcement may remain inactive. As a result, the firmware can display Secure Boot as enabled while Windows reports it as off.
User Mode
User Mode generally means that the Platform Key is enrolled, and the firmware can enforce Secure Boot policy.
A typical Windows configuration is:
Deployed Mode
Some business systems include Deployed Mode, which provides tighter administrative control.
Home users should not normally change these modes or manually edit Secure Boot keys.
After learning how to check if Secure Boot is enabled, use the following precautions before trying to turn it on.
Before changing firmware settings, complete the following checks.
Safety checklist
The first safety step after how to check if Secure Boot is enabled is confirming whether Windows already starts in UEFI mode.
Press Windows + R, enter msinfo32, and check BIOS Mode.
If it says UEFI, continue to the firmware settings.
If it says Legacy, do not switch directly to UEFI. Check the system disk first.
Disk partition style matters because how to check if Secure Boot is enabled may reveal a Legacy configuration that must be prepared before UEFI changes.
The result will normally be:
Standard UEFI Windows installations normally use GPT. Legacy BIOS installations commonly use MBR.
Microsoft provides the MBR2GPT utility for supported conversions, but a failed conversion or incorrect firmware change can make Windows unbootable. Back up the device and follow official instructions before converting the system disk.
Any guide explaining how to check if Secure Boot is enabled should also warn readers to locate the BitLocker recovery key before firmware changes.
Firmware security changes can trigger BitLocker recovery.
The key may be stored in:
Confirm that you can access the 48-digit recovery key before changing Secure Boot, TPM, boot mode, or firmware keys.
Use Advanced startup or the manufacturer’s startup key.
Once the preparation is complete, how to check if Secure Boot is enabled becomes the basis for changing only the settings that are actually necessary.
Depending on the computer, you may need to:
Do not clear, replace, or restore Secure Boot keys unless current manufacturer guidance specifically requires it.
Repeat how to check if Secure Boot is enabled after restarting so you can confirm that Windows now reports UEFI and Secure Boot State: On.
After Windows starts:
The expected result is:
You can also open PowerShell as an administrator and run:
Confirm-SecureBootUEFI
The result should be:
True
This question often follows how to check if Secure Boot is enabled, because checking can be done in Windows while enabling usually requires UEFI access.
You can check Secure Boot without entering the firmware, but most users cannot fully enable it through ordinary Windows settings.
Windows can restart the computer directly into UEFI Firmware Settings, but the final configuration change usually must be made within the firmware interface.
Some enterprise or manufacturer tools can manage firmware settings remotely. Home users should normally use the official UEFI interface.
Key management is an advanced part of how to check if Secure Boot is enabled, and factory-key restoration should never be treated as a routine first step.
Do not immediately restore or clear Secure Boot keys merely because Windows reports that Secure Boot is off.
Secure Boot relies on trusted certificates stored in the firmware. During the 2026 transition to newer certificates, some systems may already use a Windows Boot Manager that depends on updated trust entries.
Restoring outdated firmware defaults could remove a certificate needed to start Windows.
Use this safer order:
Avoid selecting the following without expert guidance:
These options can weaken Secure Boot, place the firmware in Setup Mode, or prevent Windows from starting.
In 2026, how to check if Secure Boot is enabled should be separated from checking whether the device has received the newest Secure Boot certificates.
Microsoft is updating Secure Boot certificates originally issued in 2011 because they begin expiring during 2026.
The replacement certificates were issued in 2023 and are being distributed to eligible devices through Windows servicing and manufacturer firmware updates.
The certificates support functions such as:
Certificate status adds a second layer to how to check if Secure Boot is enabled, because Secure Boot can be active while a certificate update is still pending.
On a supported and updated Windows device:
Beginning in April 2026, Windows Security can display additional Secure Boot certificate-update information.
| Status Type | General Meaning |
| Green status | No immediate action may be required |
| Yellow warning | An update, restart, firmware change, or compatibility review may be required |
| Red warning | The device needs immediate attention |
| Section missing | The feature may be unavailable, disabled or not yet exposed |
Do not rely only on the icon. Read the supporting message to confirm whether all required updates have been installed.
What most home users should do
Secure Boot may be active even when the newer certificate update is still pending. These are related but separate status checks.
A violation error can appear after how to check if Secure Boot is enabled reveals that the firmware is enforcing trust but rejecting a startup component.
A Secure Boot violation occurs when the firmware cannot verify a startup component.
Common messages include:
Possible causes include:
Safe recovery steps
Do not permanently disable Secure Boot merely to hide the error.
This recovery scenario shows why how to check if Secure Boot is enabled must be paired with caution about firmware defaults and certificate databases.
This problem is especially relevant during the 2026 certificate transition.
A computer may already be using a Windows Boot Manager signed with a newer certificate. Resetting the firmware to older factory defaults may remove the certificate required to trust that boot manager.
Windows can then stop starting even though Secure Boot previously worked.
In this situation:
Understanding the difference between UEFI and Secure Boot makes how to check if Secure Boot is enabled easier to interpret correctly.
UEFI and Secure Boot are related but different.
| Feature | Purpose |
| UEFI | Modern firmware interface that initializes hardware and starts an operating system |
| Secure Boot | UEFI feature that validates trusted startup components |
| Legacy BIOS | Older firmware and startup method |
| CSM | Compatibility feature that supports older boot components |
A computer can use UEFI while Secure Boot remains disabled.
Secure Boot cannot normally operate when Windows is starting through Legacy BIOS.
Separating TPM from Secure Boot prevents confusion when following how to check if Secure Boot is enabled on a Windows 11 computer.
Secure Boot and TPM perform different security functions.
| Feature | Secure Boot | TPM |
| Primary purpose | Validates startup software | Protects keys and security measurements |
| Location | UEFI firmware | Hardware or firmware security module |
| Used during startup | Yes | Yes, depending on the feature |
| Windows 11 role | Secure Boot capability required | TPM 2.0 required |
| BitLocker role | Supports a trusted startup | Commonly protects encryption keys |
| Replaces antivirus | No | No |
A TPM can be active while Secure Boot is disabled. Check both settings independently.
| Feature | Purpose |
|---|---|
| Secure Boot | Verifies startup software |
| TPM 2.0 | Stores security keys |
| BitLocker | Encrypts storage |
| Windows Defender | Malware protection |
| SmartScreen | Blocks malicious downloads |
| Microsoft Defender Credential Guard | Protects credentials |
Windows 11 requires a computer with UEFI firmware, Secure Boot capability, TPM 2.0, and other supported hardware.
There is an important distinction between:
A computer may satisfy the Secure Boot capability requirement even when System Information reports Secure Boot State as Off.
Enabling Secure Boot is still recommended for stronger startup protection and may be required by games, organizational policies, or security-sensitive applications.
Secure Boot should not noticeably reduce gaming performance.
It validates startup components when the computer boots. It does not continuously scan game graphics, frame rendering, or normal application activity.
It should not significantly affect:
Some games require Secure Boot because their anti-cheat systems rely on a trusted startup environment, not because Secure Boot makes the game run faster.
Secure Boot may block startup software that is unsigned, incorrectly signed, modified, or no longer trusted.
Possible compatibility issues include:
Disable Secure Boot only when a legitimate compatibility need requires it. Re-enable it after completing the task when possible.
Many modern Linux distributions support Secure Boot through signed bootloaders. However, compatibility varies.
Problems may occur with:
Before enabling Secure Boot on a dual-boot system:
The Secure Boot setting inside a virtual machine is separate from the setting on the physical host.
The host may have Secure Boot enabled while the guest VM has it disabled.
Secure Boot is supported by Hyper-V Generation 2 virtual machines.
To check it:
Common templates include:
| Guest Operating System | Secure Boot Template |
| Windows | Microsoft Windows |
| Supported Linux distribution | Microsoft UEFI Certificate Authority |
Generation 1 Hyper-V virtual machines do not provide the same UEFI Secure Boot feature.
After starting a Windows guest, run msinfo32 inside the virtual machine to confirm its Secure Boot State.
The checking methods in this guide continue to work in Windows 10.
However, standard Windows 10 support ended on October 14, 2025. Computers outside an eligible Extended Security Updates arrangement no longer receive normal free security updates.
Windows 10 users should consider:
Enabling Secure Boot improves startup protection, but it does not make an unsupported operating system fully secure.
Windows may stop starting if the system disk and boot files are not prepared.
The Registry reports the current state. It does not activate the firmware feature.
This can place the firmware in Setup Mode or make Windows unbootable.
Older defaults may not include the certificates needed by an updated Windows Boot Manager.
Firmware changes may trigger recovery. Save the recovery key first.
Incorrect firmware can cause serious startup or hardware problems.
A PC can use UEFI with Secure Boot disabled.
They are separate technologies and must be checked independently.
Firmware menu names and key-management options vary significantly.
Also check the storage drive, boot order, Windows recovery tools, firmware updates, and hardware health.
| Error Message | Meaning |
|---|---|
| Secure Boot Violation | Untrusted boot component |
| Invalid Signature Detected | Signature validation failed |
| Selected Boot Image Did Not Authenticate | Boot file not trusted |
| Unauthorized Signature Detected | Secure Boot blocked startup |
| Security Violation | Firmware rejected startup component |
| Problem | Likely Cause | Recommended Action |
| Secure Boot State says Off | The firmware setting is inactive | Check UEFI, CSM, OS Type, and Standard Mode |
| Secure Boot State says Unsupported | Legacy mode or unsupported firmware | Check BIOS Mode and manufacturer specifications |
| BIOS says enabled, but Windows says off | Setup Mode, CSM, Custom Mode, or missing key | Verify the firmware configuration without clearing keys |
| PowerShell returns False | The feature is supported but disabled | Check UEFI settings |
| PowerShell says the cmdlet is unsupported | Legacy BIOS or incompatible platform | Check BIOS Mode in System Information |
| UEFI Firmware Settings is missing | Legacy boot or firmware limitation | Use the manufacturer’s startup key |
| Windows fails after changing to UEFI | Disk or boot files use a Legacy configuration | Restore the previous setting and prepare Windows correctly |
| BitLocker recovery appears once | Firmware measurements changed | Enter the recovery key |
| BitLocker recovery appears repeatedly | A firmware or measured-boot issue remains | Restore settings and update firmwareTheThe |
| Secure Boot option is greyed out | CSM, firmware password, Setup Mode, or key issue | Follow model-specific documentation |
| Game still reports Secure Boot disabled | Change was not saved, or TPM is also required | Verify with System Information and PowerShell |
| Windows Security shows a yellow warning | Update or firmware action may be pending | Install updates and read the full status |
| Windows Security shows a red warning | Immediate attention is required | Follow official Microsoft or OEM instructions |
| Secure Boot violation appears after a BIOS reset | Required trust entries may have been removed | Update firmware and follow recovery guidance |
| A virtual machine reports Secure Boot off | Virtual firmware is not configured | Use a compatible Generation 2 VM |
Understanding how to check if Secure Boot is enabled is simple with Windows System Information. Press Windows + R, enter msinfo32, and confirm that BIOS Mode says UEFI and Secure Boot State says On. PowerShell and Windows Security provide additional ways to verify the result without restarting the computer.
When Secure Boot is off or unsupported, do not change firmware settings until you have checked BIOS Mode, disk partition style, CSM, BitLocker, Setup Mode, and the instructions for your exact device. During the 2026 certificate transition, clearing keys or restoring outdated firmware defaults can cause serious boot problems.
Use official Windows and manufacturer updates, make one firmware change at a time, and verify the result after every change. This careful approach allows you to enable Secure Boot safely while avoiding unnecessary startup failures or data-access problems.
The easiest way to learn how to check if Secure Boot is enabled on Windows 11 is to press Windows + R, type msinfo32, and press Enter. Under System Summary, find Secure Boot State. If it says On, Secure Boot is enabled and active.
You can check Secure Boot without opening the BIOS by running msinfo32 in Windows. Under System Summary, confirm that BIOS Mode says UEFI and Secure Boot State says On.
When Secure Boot is working correctly, Windows System Information should display BIOS Mode: UEFI and Secure Boot State: On. These values confirm that Secure Boot is enabled and protecting the startup process.
Open PowerShell as an administrator and run:
Confirm-SecureBootUEFI
A result of True means Secure Boot is enabled. False means the computer supports Secure Boot, but the feature is currently disabled.
Secure Boot may show Unsupported when Windows is running in Legacy BIOS mode, CSM is enabled, the firmware does not support Secure Boot, or a virtual machine lacks virtual Secure Boot support. Check BIOS Mode in msinfo32 first.
No. Secure Boot checks startup components only during boot and does not significantly affect system performance.
Yes, provided the system is configured correctly and supports UEFI boot.
Yes. Secure Boot and TPM are separate technologies.
Check System Information and look for Secure Boot State and BIOS Mode.
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