

Users who have installed Windows on a smaller SSD drive or users who don’t have allocated a significant amount of disk space to the Windows installed drive might want to delete or remove Windows.old folder to gain some valuable disk space.īut Windows.old folder can’t be quickly deleted by right-clicking on it and then clicking the Delete button.


In some cases, Windows.old folder size might go up to 10 to 15 GB, depending on the total size of the previous Windows installation. Since the Windows.old folder contains all Windows operating system files and installed apps, it takes a significant amount of disk space. Yes, it’s safe to delete the Windows.old folder unless you have plans to downgrade to the previous version. Is it safe to delete the Windows.old folder? The Windows installer uses this folder when you want to downgrade to the earlier version of Windows or when the installation of a newer version of Windows fails to complete. The Windows.old folder contains all files and apps from the previous Windows installation. If you have Windows.old folder under the root of your Windows 10 installed drive, it’s either because you have upgraded from Windows 7/8 to Windows 10 or performed a clean installation of Windows 10 without formatting the drive containing previous Windows installation files. Windows.old folder gets created when you upgrade your Windows installation to a newer version of Windows operating system, when you install Windows on an existing version of Windows without formatting the drive, or when you perform a Refresh operation. RECOMMENDED: Download PC Repair tool to quickly find and fix Windows errors automatically
