All of a sudden I have a Local Disc:Z, which has exactly everything that is on my Local Disc: C.
C is a 120 gig & Z is listed as the same.
My capacity of used space has gone from 85% down to approx. 50% & now is doing all things slow.
Is there some way to delete the Z disc/drive, without problems, as I never had it before.
Sounds like a substitute command was run. What happens if you reboot? Have you checked your startup to see if there is a substitute batch file running?
Is that on a Laptop computer ????
If so, is the Touchpad set as Tap-to-click.????
In such cases, moving the mouse too fast can move and duplicate files.