Deleting files
I recently fixed, for a friend, a win 10 (upgraded from win 7) laptop.
After trying several fixes, I reinstalled a clean win 10 and reinstated the saved files.
I had a problem with some video files which were recorded (via a usb pctv stick) tv programmes.
They would not delete (not required and using about 100gb of space) and I decided to look at the ownership of those files.
The owner (looked same for all) was a long, seemingly random, stream of characters, numbers, and letters (maybe 40 - 50 in total) and, try as I may, I could not take ownership of those files even by mounting the disk in my win10 machine and looking at them on it, including using an administrator command line from a dos prompt.
Linux would not mount the disc, reporting the ntfs system as corrupt.
This got me thinking as to where these files had obtained their ownership - some were "inherited" from the win 7 system but others were from since win 10 was installed.
Have any of the gurus on here observed this "phenomenum" or have any idea where the ownership may have come from?
Thanks in advance.