I moved from a 2 TB hard drive to a 1 TB SSD, and the old drive previously contained a Windows.old folder with photos and other files I had never backed up. The folder disappeared at least a week ago, possibly after being left there for several years. I checked recovery-related folders and scanned the drive with WizTree, but didn't find anything taking up the expected amount of space. Recuva also failed to locate anything useful. The drive's used storage seems roughly unchanged, so I'm wondering whether the files might still be hidden somewhere or if they're permanently gone. What recovery steps should I try?
3 Answers
The unchanged storage total doesn’t prove the files are still present. The space may now be allocated to system data, restore points, or other folders. Also, Windows.old is commonly removed automatically after a limited period, so its disappearance after years isn’t unusual. Recovery is only possible if the old sectors haven’t been reused.
Windows.old is normally a temporary copy of the previous Windows installation. Windows can automatically remove it after an update or reinstall, and deleting the folder also deletes anything manually placed inside it. If it really contained your photos, the files may have been removed when Windows cleaned up the folder.
Stop using that hard drive immediately. New writes can overwrite sectors that might still contain recoverable data. Connect it only as a secondary drive or boot from another disk, and save any recovered files to a different drive. Recuva missing them doesn’t prove they’re unrecoverable—DMDE or PhotoRec may find more, though PhotoRec often loses filenames and folder structure. For the best chance, create a sector-by-sector image first and scan the image instead of the original. If the photos are irreplaceable, a professional recovery service is safer.
I think the files ended up there because Windows had failed to boot and I reinstalled it, rather than because of a normal upgrade. I’m not sure why the folder survived for so long, but I’ll keep looking.