When I de-clutter by deleting what look like duplicates, I have lost information altogether. Files appear to be being saved randomly,which makes them seem lost, some of them turning up
in the old User Account folders I had not been using. I see from the enormous amount of stuff on the web about changing User Accounts and Folder names that it is a risky business even if you know a lot more than I do. I may just back everything up and start again.
I did discover from the HP support link you sent which folders are using the most space and that the intelpub files are log files, take up a great deal of space and can probably be wiped.
My son is going to help me with that.
Thankyou for your help.
ThanksYou could run Disk Cleanup on the C drive :- https://www.howtogeek.com/266337/what-should-i-remove-in-disk-cleanup-on-windows/