I hope folks can help with this one.
After a failed HDD and purchase of a new drive, I then did a clean install of Windows 10 from a disk image - except it failed part-way through throwing up an error.
I tried again and it again failed part-way through.
I tried for a third time with a different disk and the installation failed again (albeit at a different point)
I tried for a fourth time with an image on a USB stick - and SUCCESS!
However, in addition to a Windows folder in C: drive, I now also have folders called Windows.old (10.1Gb), Windows.old.000 (7.40Gb) and Windows.old.001 (13.2Gb).
I logged into the Administrator account and tried to delete these folders - but I get an error message that SYSTEM needs to give permission (how can I get SYSTEM to give permission?).
I tried opening an elevated command prompt to use the RMDIR and DELTREE DOS commands.
The DELTREE command says " 'deltree' is not recognized as an internal or external command, operable program or batch command" and RMDIR gives the message "The directory is not empty".
Question is, how can I get rid of these folders which are useless and occupying 30.7Gb of my new HDD space?