To switch from Windows 11 to Windows 10 for Roblox, first try the built-in rollback option: go to Settings > System > Recovery and look for Go back ; this is only available for a limited time after upgrading.

What to do

  1. Back up your files first.
  2. Open Settings > System > Recovery.
  3. If Go back is available, follow the prompts to return to the previous Windows version.
  1. If Go back is missing, the rollback window likely passed, so you’ll need a clean Windows 10 install instead.

Roblox note

Roblox now supports Windows 10 and 11, and on Windows computers you may need to install the newer Microsoft Store app version; your account, Robux, inventory, and progress stay tied to your Roblox account.

If Roblox is the real issue

If Roblox is crashing on Windows 11, you may not need to downgrade. Common fixes include reinstalling Roblox, running it as administrator, and turning off overlays or other software that interferes with launch.

Important caution

If your device is in Windows S Mode , you can switch out of S Mode from Settings > System > Activation and then use the Microsoft Store prompt to leave it. That is different from downgrading Windows 11 to 10.

If you want, I can turn this into a short step-by-step guide for a clean Windows 10 install.