

These folders are System folders so they are hidden by default. Just like in my case, there will only be some Log (.log) files left in both of these directories. It may still leave the two directories in your drive, but their size won’t be more than an MB. Or, you can use Command Prompt to delete these two folders as well as the data within them.ĭelete $WINDOWS.~BT and $Windows.~WS folders using Disk Cleanupĭisk Cleanup will safely delete all of the unnecessary files.

These files should automatically be deleted after those 10 days, but if you still have a huge folder of Gigabytes of the old Windows data then you can safely delete that using the Windows Disk Cleanup tool. So the System files of the previous installation are stored in these two folders for 10 days. Delete $WINDOWS.~BT and $Windows.~WS folders using Command Prompt (Admin)Īfter every Version Upgrade, Windows gives its users 10 days to Downgrade to the previous version or build if they don’t like the newer version.Delete $WINDOWS.~BT and $Windows.~WS folders using Disk Cleanup.

These two folders contain a Backup of Windows folder, User folders, and other important System files. When you upgrade your Windows, it stores the files of the previous version of Windows in folders. $WINDOWS.~BT and $Windows.~WS folders are the temporary directories used by Windows during the Upgrade process.
