hey man, you seem kinda genuine here so im gonna try help you out a little (unless your lying then im about to cuck you a little sorry). a small tip to prove if your pc did actually crash, assuming your on windows, open your search bar with the windows key and open ‘event viewer’ ( or open your run menu with windows + r and run eventvwr.msc). then go to windows logs -> system and you should be able to see any errors that happened on that data + time, helping prove your case, hope this helps!
more methods for crash logs