Here’s the proper way to delete the Windows.old folder:

• Step 1: Click in Windows’ search field, type Cleanup, then click Disk Cleanup.
• Step 2: Click the “Clean up system files” button.
• Step 3: Wait a bit while Windows scans for files, then scroll down the list until you see “Previous Windows installation(s).”

Is it safe to remove window old?

While it’s safe to delete the Windows.old folder, if you remove its contents, you will no longer be able to use the recovery options to rollback to the previous version of Windows 10. If you delete the folder, and then you want to rollback, you’ll need to perform a clean installation with the desire version.

How do I delete old backups on Windows 10?

How to Delete Old Backups of File History in Windows 10

1. Step 2: Click on the Advanced settings link on the left side.
2. Step 3: Then click on the Clean up versions link in the Versions section.
3. Step 4: Select the time period of versions you want to delete, and then click on Clean up.