How to install Windows 11 on Surface Pro 4?

Rufus is a free and open source Windows utility that makes a bootable USB flash drive for Windows 11. It bypasses hardware limitation checks so you can install Windows 11 on any Surface Pro devices, has no paid features, is small and fast, and is perfect for Surface Pro 4 users.

1. Prepare a USB drive with more than 8GB. 

2. Use File Explorer to copy important Surface Pro 4 data to an external hard disk for backup.

3. Plug in the USB drive and format it to NTFS in File Explorer. Double-click the Rufus.exe file to open it. Select the USB drive in Devices, and click on Load Windows 11 ISO file. 

4. Choose Standard Windows Installation for Image Options, GPT for Partitioning Scheme, and UEFI (not CSM) for Target System. 

5. Tap Advanced Options, check Remove checks for TPM 2.0 and Secure Boot and Remove checks for 4GB+ RAM. 

6. Tap Start and wait 5 - 10 minutes for the USB flash drive to boot.

7. Turn off Surface Pro 4, press and hold the Volume Up button and then press the Power button to enter UEFI setup. 

8. Set the USB drive as the first boot item in the boot configuration.

9. Go to Security Options and make sure TPM 2.0 and Secure Boot are enabled, or disabled if you can't bypass the restrictions.

After this, you can install Windows 11 on Surface Pro 4, and other devices such as Surface Pro 5, Surface Pro 3, Surface Pro 2 and Surface Pro 1.