Yeah i wont move anything to the new computer other then some pictures and documents in word and excel . Is there any possibilty of pictures or documents be contiminated? I dont think so but it doesnt hurt to ask.
Also if he has something sophisticated to find my identifier why hasnt he touched anything else?that suspense is right out of /r/nosleep for me.
Usually pict or video not effected, maybe the hacker give your computer some malware or something scary from pishing site. Better to install anti-keyloger, clean your pc or better to backup your data, transfer your btc to safe wallet, too many blockchain complain from user better to move your coin to desktop wallet or hardware wallet.
~iki