How to Install Windows 11 on Unsupported CPU: A Step-by-Step Guide

Installing Windows 11 on an unsupported CPU might sound tricky, but it’s totally doable with a bit of patience and the right steps. By tweaking some settings and using a few tools, you can make your unsupported CPU work with the latest operating system. Ready to jump in? Here’s a quick overview: you’ll need to modify the Windows 11 installation files, bypass the hardware checks, and then proceed with the installation as usual.

Step by Step Tutorial for Installing Windows 11 on Unsupported CPU

We’ll go step-by-step to make sure you can install Windows 11 even if your CPU isn’t officially supported. Here’s how to get it done:

Step 1: Download the Windows 11 ISO

First, download the Windows 11 ISO file from the official Microsoft website.

You need the ISO file to create installation media. Make sure you have a reliable internet connection because the file can be quite large. Save it to a location you can easily access.

Step 2: Create a Bootable USB Drive

Next, use a tool like Rufus to create a bootable USB drive with the Windows 11 ISO.

Rufus is user-friendly and free. Plug in a USB drive (at least 8GB), open Rufus, select the ISO file you downloaded, and follow the prompts to create the bootable drive.

Step 3: Modify the Windows 11 Installation Files

You’ll need to tweak some files to bypass the hardware checks.

Navigate to the USB drive, find the “sources” folder, and delete the file named “appraiserres.dll”. This file is responsible for the hardware check, and removing it will let you bypass the unsupported CPU check.

Step 4: Disable Secure Boot and TPM in BIOS

Restart your computer and enter the BIOS setup. Disable Secure Boot and TPM.

Each BIOS interface is different, but you’ll usually find these settings under Security or Boot options. Disabling these will help you bypass the CPU requirement.

Step 5: Install Windows 11

Boot from the USB drive and follow the on-screen instructions to install Windows 11.

Select “Custom Install” and choose the partition where you want Windows 11 installed. Follow the prompts, and the installation should proceed without checking for supported hardware.

After completing these steps, your computer will start installing Windows 11. The process can take some time, and your PC will restart several times. Once it’s done, you’ll be greeted by the Windows 11 setup screen.

Tips for Installing Windows 11 on Unsupported CPU

  • Backup Your Data: Always back up important files before starting the installation.
  • Keep Installation Media Handy: You might need to reinstall or repair your system, so keep the bootable USB drive.
  • Update Drivers: After installation, update all drivers to ensure compatibility and performance.
  • Check for BIOS Updates: Sometimes, a BIOS update can improve compatibility with new operating systems.
  • Monitor Performance: Keep an eye on system performance and stability, as unsupported hardware can sometimes lead to issues.

Frequently Asked Questions

Will installing Windows 11 on an unsupported CPU void my warranty?

It depends on your PC manufacturer’s policy. Check with them before proceeding.

What happens if my PC fails the installation?

You can always revert to your previous operating system using the backup you created.

Can I receive Windows updates after installation?

Microsoft might not provide all updates for unsupported systems, but you can still manually install updates.

Is there any risk to my hardware?

There’s minimal risk, but unsupported hardware might not perform optimally or could encounter compatibility issues.

Do I need a Windows 10 license key?

Yes, you’ll need a valid license key to activate Windows 11.


  1. Download the Windows 11 ISO.
  2. Create a bootable USB drive.
  3. Modify the installation files.
  4. Disable Secure Boot and TPM in BIOS.
  5. Install Windows 11.


Installing Windows 11 on an unsupported CPU might seem like a challenge, but by following these steps, it’s entirely possible to breathe new life into your older hardware. Remember, the key is preparation: ensure you have all necessary tools and backups before you start.

While this workaround can help you enjoy the latest features of Windows 11, keep in mind that unsupported hardware might occasionally cause performance hiccups or compatibility issues. Always keep your drivers updated, and watch out for any system updates from Microsoft that might affect your setup.

For further reading, consider looking into community forums or official Microsoft documentation for more in-depth troubleshooting and updates. Now that you know how to install Windows 11 on an unsupported CPU, why not give it a shot and explore the new features yourself?

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