How to Bypass Windows 11 25H2 Requirements: Install on Unsupported PCs Without TPM, Secure Boot, or 4GB RAM

How to Bypass Windows 11 25H2 Requirements and Install on Unsupported PCs

Microsoft’s Windows 11 25H2 still enforces the same system requirements as before — a 1GHz dual-core CPU, TPM 2.0, 4GB of RAM, and Secure Boot. But many users with older PCs have confirmed that bypass methods still work, even after Windows 10 reached end-of-life.

If your device doesn’t meet these requirements, you can still install Windows 11 25H2 using a few reliable methods tested by the community. Below is a detailed guide explaining each option, what it does, and the risks involved.

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🔧 1. Command Prompt Method — In-Place Upgrade (Keep Files and Apps)

This method tricks the Windows installer into thinking it’s performing a Windows Server upgrade, which has fewer hardware restrictions. It’s ideal if you want to upgrade without losing your files or apps.

Steps:

1. Download the Windows 11 25H2 ISO from Microsoft’s official site.
2. Mount the ISO file (right-click → Mount).
3. Open Command Prompt as Administrator.
4. Navigate to the mounted ISO drive (e.g., E:).
5. Run this command: setup.exe /product server
6. Follow the setup wizard. Choose Keep personal files and apps if you want an in-place upgrade.
7. Continue through the prompts to complete the upgrade.

✅ Pros:

• Keeps your apps, settings, and files.
• Works even if TPM or Secure Boot is missing.

⚠️ Cons:

• May fail on some older hardware.
• Still unofficial, not supported by Microsoft.

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💾 2. Rufus Tool — Create a Bootable USB That Removes Checks

Rufus is one of the easiest and most popular tools to create Windows installation media that bypasses TPM, Secure Boot, and RAM checks. It works for both clean installations and upgrades.

Steps:

1. Download Rufus from its official website.
2. Insert a USB drive (8GB or larger).
3. Open Rufus and select the Windows 11 ISO.
4. Under “Image options,” enable:
   • Remove requirement for 4GB+ RAM, Secure Boot, and TPM 2.0.
5. Click Start to create your USB.
6. Boot your PC from the USB and follow the Windows 11 setup.

✅ Pros:

• Simple GUI; no manual registry edits.
• Works on most unsupported PCs.
• Supports both clean installs and upgrades.

⚠️ Cons:

• USB creation wipes existing data on the drive.
• Each Rufus version may change option names slightly, so double-check before starting.

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🧩 3. Registry Edit Method — Clean Install Only

The LabConfig registry edit is a direct method used during Windows Setup. It bypasses hardware checks but only works for clean installs (your files and apps will be erased).

Steps:

1. Boot your PC from a Windows 11 USB drive.
2. When you reach the message “This PC can’t run Windows 11,” press Shift + F10.
3. In the Command Prompt, type regedit and press Enter.
4. Go to: HKEY_LOCAL_MACHINE\SYSTEM\Setup
5. Right-click Setup → New → Key → name it LabConfig.
6. Inside LabConfig, create three new DWORD (32-bit) values:
   • BypassTPMCheck = 1
   • BypassSecureBootCheck = 1
   • BypassRAMCheck = 1
7. Close Registry Editor and continue setup.

✅ Pros:

• Works directly in the installer.
• Reliable for clean installs.

⚠️ Cons:

• Wipes all data (no in-place upgrade).
• Manual process; mistakes may cause setup failure.

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⚠️ Risks and Limitations

Bypassing requirements gives flexibility, but it comes with trade-offs:

• Security Risks: TPM and Secure Boot are designed to protect against malware and rootkits. Disabling them lowers protection.
• Updates: Microsoft may restrict feature or security updates on unsupported systems.
• Driver Support: Older hardware may have missing or unstable drivers for Windows 11.
• Warranty and Support: OEMs might refuse service if you’re running Windows 11 unofficially.

Always back up your files before attempting any of these methods.

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🔙 How to Roll Back to Windows 10

If the upgrade causes problems, you can roll back within 10 days (for in-place upgrades):

1. Go to Settings → System → Recovery.
2. Under “Recovery options,” choose Go back.
3. Follow the prompts to revert to Windows 10.

If you performed a clean install, recovery isn’t possible — you’ll need to reinstall manually.

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✅ Best Practice Checklist Before You Begin

• Back up your important data or system image.
• Test on a secondary device first.
• Ensure you have network and display drivers handy.
• Link your Windows 10 license to your Microsoft Account for easy reactivation.
• Keep installation media ready in case rollback fails.

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🧠 Final Thoughts

Bypassing Windows 11 25H2 requirements still works — but do it only if you understand the risks. These methods are great for testing or extending the life of older PCs, but not for mission-critical systems.

If you’re running unsupported hardware, be ready for limited updates and potential security gaps. For long-term reliability, consider upgrading your hardware or sticking with a supported Windows 10 LTS version.

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