Delete Windows. old Folder in Windows 10 Using Use Disk Cleanup
How to delete Windows.old can`t be deleted? How to delete Windows.old under Win10 system
1. Right-click the C drive and click Properties, as shown below:
2. Then click Disk Cleanup in the General tab, as shown in the figure below:
3. Click on the "Clean up system files" .
4. Check the "Previous Windows installation(s)" and confirm to clear it, as shown below: