The MS support tech said they would charge me to clean those errors instead of resetting the system which would delete all of my software. My PC is 3 years old. I plan to purchase a new one within next 6 months but the machine still runs well. I just want to get rid of those errors b/c I use advancedcare everyday to scan my system to remove malware/spyware etc. Within the past 3 months i've been hearing a high pitch squealing sound coming from the PC tower. I do not know what that is and neither did the tech. Any opinion on that?