"@AtlBo so after i go to advanced and add those programs, a window pops up asking if I should allow taskeng.exe, one of the things i added. Should i allow it or block it?"
Allow it and see if you get the reboot. Malware will often use a scheduled event which may be left behind even if the malware is gone or can't run. Make note of the command line of the Taskeng alert. Also, just because the PC doesn't shut down doesn't mean it's not a task.
If you run into alerts from programs you know, just whitelist them. Allow everything else, since you aren't after malware. Maybe something will trigger the alert.
friedlander .m.s is correct about heat and dust too. If you can't determine via ERP what is causing the problem, checking for dust is a good idea. Good idea anyway. Actually, if the shutdown is not a normal shutdown (a flash shutdown instead), it is more credible that hardware might be the issue.
BTW, if you don't see an alert before a shutdown, good chance ERP still to a log record of the event. They are stored in C:\ProgramData\NoVirusThanks\EXE Radar Pro\Logs. Look for the most recent entry before the shutdown...