ok I cant think what happened last night I had 15gigs free on my ssd ,I get home today and now I have 52 gigs free. I did not do a thing just turned it on and looked at my c drive . I cant see any thing missing
Have you been upgraded(not clean install) to Windows 10, 30 days or longer? Then Windows has clean out the files to roll back to your prior OS version. If not probably some old unneeded/unimportant windows files got purged during automatic maintenance.
Are you missing any personal files?
Have you made any power settings changes, specifically hybrid start/hibernate?
Have you made any changes in System Protection configuration?