Don't Have Access Right Now To Run SysInfo

I don't have access right now to run the SysInfo, but can get in to run it if it is necessary. She's been having multiple problems, dating back a couple years. We recently called a local computer tech who said the problems were caused by upgrading from Vista to Windows 7, instead of doing a clean install. But another local tech told her that the first guy was wrong and the problem was that her computer was completely infected and she was having hardware failures. I'm not sure who to believe. Most of the problems seem to be with Microsoft Office programs, though that may be because that is what is used most often. Operating system: Came with Vista upgraded to: Windows 7 Home Premium 64-bit with Service Pack 1 Processor: AMD Turion Dual-Core 2.1 GHz RAM: 4GB Software: Microsoft Office 2007, Norton 360, LogMeIn backup/remote control.Problems with Microsoft Office (Outlook, Word, etc.) Trouble trying to start outlook crashed after I used LogMeIn to take control and update contacts in Outlook. Bar at top disappeared, icon on desktop changed, took repeated reboots/attempts to re-open. Was not allowing use of Word - said over disk capacity. All but 2 fonts disabled and not able to insert images was resolved when ran repair utility on Office. Computer is randomly turning off, beginning 7/29. (I recommended using compressed air to blow out vents and purchasing a laptop cooling fan.) There was a problem with her sound driver causing high cpu usage and slowing her machine. I ran Windows Update, which updated her sound driver, but then it was crashing and causing more problems. I then rolled back back the driver, which caused her sound to stop working altogether. I unstalled/reinstalled/updated and it seems to be working now. The print service stops frequently. I have finally set it to restart the service repeatedly, even if it continues to stop (which it does).