Fair go, I did most of the suggestions, just not all. And just because I didn't list all I have done, it didn't mean I didn't do them.

eg I already have done Office installation Repair - it didn't fix problem at all.

I mentioned deleting Normal.dotm, because most suggest it... and it is only temporary fix.

No point in a fresh install of Win 10, because I had problems soon after buying new PC.
So reinstalling would merely postpone the problem, even if it briefly fixes problem.

So that leaves Temp folder, with limited success.
I tried %temp%, and deleted as much as I could.
But there were still many files and folders still in temp folder, which I couldn't remove because message said "You'll need to provide admininstrator permission to delete this folder".
When I went to check my status in User Accounts, it said I was Administator.
So unable to delete much from temp folder. Any suggestions?
I then tried to print pages in 2 separate docs, which normally cause the error, but no error, for now.