Learn how to delete previous Windows installations (windows.old) safely in Windows 10 and 11. This guide will show you two easy methods: using Storage Settings and Disk Cleanup to remove temporary files from previous Windows versions and free up disk space. ✅ What is windows.old? When you upgrade Windows, the old version is saved in the windows.old folder. It can take 20–40 GB of space. ✅ Is it safe to delete windows.old? Yes, it’s safe if your Windows is working fine and you don’t want to roll back to the previous version. Save space, speed up your PC, and get rid of unnecessary files today! How To Remove Windows.old in Windows 11 #WindowsOld #DeleteWindowsOld #Windows10 #Windows11 #DiskCleanup #FreeUpSpace #WindowsTips #RemovePreviousWindows #TemporaryFilesCleanup #WindowsUpgrade