I've been facing an ongoing issue with my 2TB D: drive SSD where I keep losing hundreds of gigabytes of data, and I'm not even downloading or installing anything. I've tried almost everything—disk cleanup only shows 50MB in the recycle bin, I've run full virus scans in safe mode, and I even used a program called WinDirStat to identify storage usage. After clearing out space, I'd have around 160GB free, but after downloading a 2GB game and restarting my system, I find myself with just 82MB left! It's incredibly frustrating. I'm eager to find a solution since most help guides focus on the C: drive, and my issues are strictly with the D: drive. If this means my SSD is failing, I need to know, as that seems like the only explanation at this point.
3 Answers
Have you checked the drive's health? If your SSD is unhealthy or failing, it’s important to look into that. You can usually check it with a utility that came with your SSD. For a quick check on Windows 11, go to Settings > System > Storage > Advanced storage settings > Disks & volumes, and check the health status of your drive.
Exactly! Don't forget to check the maximum space allocated for restore points. It shouldn’t be huge—usually a couple of GB max. If it's set too high, it can fill up fast with old restore points. Try deleting the old ones and setting it up right. That will free up a lot of storage, plus don't forget to clean out any outdated update files, too.
After running WizTree, I discovered huge backup files on my D: drive—like a 945GB file from last year and a 252GB one from a few months ago. Those are likely incremental backups. You should consider what to do next because those files are eating up space. I wish I had checked this earlier instead of doing a 13-hour virus scan!

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