Mine is Win 10.
I found out what to do to get rid of the locked files: deactivate hibernation, system protection, pagefile and kernel dump.
Here's adetailed walkthrough for Win 8: https://www.download3k.com/articles/How ... ated-00432
The MFT problem can't be solved with Win 10 tools but Ultradefrag doesn't do anything about it either. Someone recommended a shrink-defrag-shrink-defrag-shrink-.. routine which might work. https://superuser.com/questions/1017764 ... -partition
and https://www.howtogeek.com/howto/windows ... -problems/
recommend several other tools for that task but I did not have to use them because getting the locked files out of the way was enough.
Edit: I decided to take a step further with minitool partition Wizard Free which seemed to work, but now I have Boot Configuration Data error 0xc0000034 - which should be easy to fix once the download from MS is finished. - or so I thought. I ran into one trouble after the other. I would not recommend using any of these tools if you love your Win 10 install. I hate the thing more than ever so I don't mind.