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candera / shadowspawn

A Windows utility that mounts a shadow copy of the disk at a drive letter and then spawns an arbitrary command.
MIT License
188 stars 55 forks source link

How to free drive letter #22

Open stefanunz opened 6 years ago

stefanunz commented 6 years ago

When shadowspan fails the drive letter seems to be blocked (Error: device allready exists)

Is there a way to release / unmount that drive letter? Maybe by killing a task?

dtfinch commented 6 years ago

My instinct would be try running "subst /d X:" with X being the unwanted drive letter, but I can't say from experience.

emin63 commented 1 month ago

My instinct would be try running "subst /d X:" with X being the unwanted drive letter, but I can't say from experience.

I had this issue and tried using subst but got an error about X: being an invalid parameter. I also tried using diskpart but the offending drive did not show up there either.

I ended up just switching the drive letter I was using so the work around is easy. Maybe ShadowSpawn was running during a recent windows update and that got things in a weird state?