If its only been a week, and you cant get anything else to work, id reccomend just reinstalling windows, if it continues, theres a chance it might be a faulty harddrive. But an unstable version of windows can crash kinda whenever it wants and corrupt itself. I used the same faulty ( I wasnt aware at the time) install for a few months, and it would corrupt every so often. something would trigger it but I could never tell what, so I tried a new ISO and it worked flawlessly