When upgrading to Windows 10 it fails with the error WindowsUpdate_80070070 OR WindowsUpdate_dt000 – not enough disk space. According to the FAQ I need at least 8GB in order to upgrade, which I have on all three of my disks. On C: I have less than 11 though. Basically C: only contains Windows 8.1 and the upgrade files for Windows 10, there is almost no other data on there. Is there a way to upgrade from a different drive?
I have run the disk cleaning utility and I do not want to do a fresh install. I checked the drive with WinDirStat and there is no more data I can move or delete on C:. Any hints?
Best Answer
powercfg /h off
Empty all of these folders
Turn off Windows update Move C:\windows\SoftwareDistribution to another drive and junction it
mklink /J "C:\windows\SoftwareDistribution" "d:\junctions\SoftwareDistribution"
Turn windows update back on.
Re-install,Move,Junction the largest folders in
"c:\program files"
"c:\program files (x86)"
More in a minute.
You need to move and/or junction stuff to another drive. Is My Documents/Documents still on the C: drive? Move them!