I was working on an HP laptop that had a finicky CMOS. The hard drive had failed and it wouldn’t accept anything that I tried in it. So I went to ebay and bought an identical drive. Before I installed it I slaved it to another machine. Sure enough - it was complete with personal data, movies, and porn.
I can’t remember how many passes I made on it before I trusted it with any software.
HP (has problems) systems being onery is no surprise. I avoid them and recommend others buy something else when asked.