Forum Discussion
GageWilder
Mar 30, 2026Iron Contributor
Windows 10 Windows.old Size Shows Differently Across Tools
WinDirStat shows Windows.old as 200+GB, Disk Cleanup as 700+GB, and File Explorer as 1.0GB. Why the huge discrepancy?
Izannki
Apr 10, 2026Brass Contributor
The huge discrepancy is because each of these tools is displaying a different aspect of disk usage. Windows.old is a separate folder that contains a copy of your previous Windows installation, while Disk Cleanup and File Explorer are showing the current disk usage.