If you are a Mac user, but also need to run Windows, there are several easy ways to do it all on one machine.

However, if you are on Apple silicon (M1) Mac, and want to run Windows 11? So far the path has hit a brick wall. Parallels promises to have a version out when they have mastered how to do it. But what if you just… can’t… wait?!

I may just have to magical codes to deliver.

My thanks to ytechb.com for most of the pointers.

WARNING: Windows 11 is still in beta/preview development. This is not stable software (oh, hell. When is Windows all that stable anyhow?)

WARNING: These steps require making changes to your registry. This is not something to be taken lightly. However, the changes are minor.


  • An Apple silicon Mac with all current updates.
  • At least 22 GB free space on your boot drive.
  • Parallels (current version).
  • Internet connection.
  1. Download and install Parallels from https://parallels.com.
  2. Download and install Windows 10 Insider Preview from https://insider.windows.com/en-us/
  3. From Parallels, install the Windows 10 Insider Preview.
  4. Run Windows Update to verify you have the latest version of Window 10 Insider Preview installed.Normally, this is as far as you can currently go with updates, as Windows 11 Insider Preview will not install on an Apple silicon Mac. But there are two brick walls we are going to go through like they were butter.
  5. Open the Windows Registry Editor, then go to HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > WindowsSelfHost > UI > Selection.
  6. Double-tap on UIBranch, then change the value to Dev.
  7. In Registry Editor, go to HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > WindowsSelfHost > Applicability.
  8. Double-tap on BranchName, then change the value to Dev.
  9. Close Registry Editor.
  10. Restart Windows.
  11. Go to Windows Update Settings > Check for Updates.
  12. The Windows 11 Insider Preview will be seen as available.
  13. Tap the button to download the Windows 11 Insider Preview.
  14. The download will start, but will soon pop-up an error message that Windows 11 cannot be installed as there is no TPM 2 chip found (Macs do not have a TPM chip, although they have their own hardware security chip in use).
  15. Don’t close the error message.
  16. Open File Explorer, then search for AppraiserRes.dll.
  17. When AppraiserRes.dll is found, open the parent folder, drag AppraiserRes.dll to the desktop, then delete the found AppraiserRes.dll. KEEP THIS PARENT FOLDER OPEN.
  18. Go back to the error message and click Continue.
  19. In the Windows Update window, tap the Fix issues button. The Windows 11 installer will continue downloading.
  20. An Almost Ready message will appear. You can close it.
  21. Once the download has progressed past the point it had stopped earlier (probably around 10%), you can drag and drop the AppraiserRes.dll back into the folder in which it was found.
  22. When download has completed, an alert will prompt to Restart Now. Tap this button to restart.
  23. Once restarted, Windows 11 will continue to install.
  24. When back to the desktop, return to Windows Update Settings > Check for Updates, and check for additional updates.
  25. When the updates download, you are done, and have Windows 11 Insider Preview waiting to be used.