Windows error 0x80070070 (There is not enough space on the disk)
The update, upgrade or copy needs more free disk space than is available.
Seen on:
Windows
Meaning
ERROR_DISK_FULL. Feature updates need 20–30 GB free on C:. Also happens on the EFI partition or a small USB drive.
Common causes
- C: drive nearly full
- Old Windows.old / update caches
- Small target drive or partition
⚡ Quick fix
- Run Disk Cleanup (Clean up system files)
- Remove Windows.old, temp files, large downloads
- Use an external drive for the upgrade’s temporary files
Detailed fix by platform
Windows
- powershell
cleanmgr /sageset:1 & cleanmgr /sagerun:1 DISM /Online /Cleanup-Image /StartComponentCleanup
How to diagnose
- Space — Free space on C:
- Big folders — WinDirStat/Storage settings
🔧 Still not fixed?
Many errors look alike. If the steps above didn’t solve it, one of these is probably what you’re facing:
Similar errors
Most viewed in Windows
Other ways to find it
🧠 Still stuck? Analyze your error
Paste the full message, response headers or stack trace — we'll detect the platform and point to the most likely cause.
Was this page helpful?
Report a correction or suggest an improvement
Last updated 7 Oct 2026