Microsoft Solitaire Collection repair
Had the same problem but finally fixed it by resetting windows 10 GO TO THE FOLLOWING
Settings -- Update and Security --- Recovery ---- Reset PC Get Started ---- Choose an Option --- 2 prompts comes up asking to keep files or delete files.
I kept my files and when it finished it was all there. This really works and now I have my Microsoft Solitaire Collection back.
It takes about an hour but it is DEFINITELY worth the time.
I tried everything but this WORKS.