How do you know if your computer is hot or corrupted?
Well for starters if your PC overheats you may possibly encounter problems such as ;strange fan noises,continuous shut downs and possibly even the dreaded "Blue Screen". And if you see or smell smoke you know that it's getting pretty hot (just kidding)
Anyway these would be some indicators.
Now,I realize that this was not part of your question but here goes anyway.
To help avoid the above:Cleaning the inside of your PC (including fans etc.) occasionally will go along way to ensure that your PC will not overheat. If you want to monitor your temps. and fan speeds etc.you can download a program that will do this, for example:
www.gtopala.com/ If your PC is relatively new ,under normal conditions you shouldn't encounter overheating.
As far as corrupted; you could possibly encounter; very slow start-ups, possibly some programs that will not load, some very slow applications and again, possibly the "Blue Screen".
Again you didn't ask but; to help avoid this; I would suggest using one only Firewall, one only Anti-virus program and have a good Anti-Spyware and a good Anti-Malware program .These programs should be used/ran fairly often. Keeping all of your programs up to date will go a long way to ensure that your PC will not get corrupted. And, if you have any concerns at all about corruption/viruses etc. please request help from the pros. here at CH. overthehill