Hello i am buying a used pc normally would not do this (and never have) but it was a very good deal ( and its nearby so i can pick it up) Main thing i am worried about is about there being an infection on the machine (contains several SSD and a hard drive) i am sure he wiped or did a factory reset or something before he will sell it. but i am worried about potential infection in MBR or something else that might survive. I am pretty paranoid so for my own sanity how can i make sure 100% its clean?