Your PC might still run Windows 11 despite the “This PC can’t run Windows 11” message. Common reasons include lack of TPM 2.0 support, Secure Boot not enabled, unsupported CPU, or insufficient RAM or disk space. To fix or bypass the message, check firmware and security settings, or download and run Microsoft’s compatibility tool manually from their website.
Your PC might actually be able to run Windows 11 even if you see the message "This PC can't run Windows 11." The issue often comes down to how the system checks are being interpreted, especially around firmware and security settings. Here’s what you can do to fix or bypass that message.

Check Why It Says Your PC Can’t Run Windows 11
The first thing to do is find out why your PC is showing that message. Microsoft built a tool called the PC Health Check app to help identify compatibility issues. If you already ran it and got the error, click on the “Learn more” link — it usually tells you which requirement your system didn’t meet.

Common reasons include:
- No TPM 2.0 support
- Secure Boot not enabled
- CPU not in the supported list
- RAM or disk space below requirements
If you're seeing this message without using the tool, download and run it manually from Microsoft's website.

Enable TPM 2.0 in BIOS/UEFI
Many systems have TPM (Trusted Platform Module) hardware but it's disabled by default. You’ll need to enter your system’s BIOS or UEFI settings to enable it.
Here’s how:
- Restart your PC and press the key for setup (usually F2, F10, Delete, or Esc — check your screen during boot)
- Look for options like "Security," "Advanced Settings," or "TPM Configuration"
- Enable TPM 2.0 (not PTT or fTPM unless that's what your motherboard supports)
- Save and exit
After rebooting, rerun the PC Health Check — the error may go away.
Turn On Secure Boot
Another common reason is that Secure Boot isn’t enabled. This feature helps protect your system from malicious software during startup.
To enable Secure Boot:
- Enter BIOS/UEFI again
- Find the Boot or Security section
- Look for Secure Boot and set it to Enabled
- Save and restart
Some older systems don’t support Secure Boot, though. In that case, you may still be able to install Windows 11 manually, as long as you’re okay with skipping official support.
Bypass the Compatibility Check with Installation Media
If your system meets most of the hardware specs but fails one of the checks (like lacking TPM), you can manually install Windows 11 anyway using installation media.
Steps:
- Download the Windows 11 ISO file from Microsoft
- Use a tool like Rufus to create a bootable USB drive
- Boot from the USB stick
- When you get to the screen asking where to install, just proceed — the installer won’t block you based on TPM or Secure Boot here
Keep in mind: Microsoft might not offer full support for systems that don’t meet all the official requirements.
Use a Registry Hack (for Insider Preview Only)
If you're trying to join the Windows Insider Program and getting the error, there's a registry tweak you can try.
Steps:
- Open
regedit
as admin - Go to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows
- Look for a value called
NoCBCheks
- If it doesn’t exist, create it and set it to
DWORD (32-bit) Value
with data1
This skips the compatibility check for Insider builds only. Don’t use this on stable releases — it won’t work and could cause instability.
So depending on why your system shows the message, you can either tweak settings like TPM and Secure Boot, or bypass the check entirely with manual installation. Most of the time, enabling TPM in BIOS fixes it. If not, making your own install media gets you past the gatekeeper.
The above is the detailed content of How to fix 'This PC can't run Windows 11'. For more information, please follow other related articles on the PHP Chinese website!

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