This morning after using the Vista backup & restore center, I had trouble shutting off my computer. I had to press the power button to turn it off. The first time I turned on the computer after finally shutting it down, I got a screen asking me if I wanted to start in safe mode. I didn’t know what to do, so I did nothing. It started normally, but then said Windows Explorer wasn’t running. I sent a report to Microsoft. Now every time I turn on the computer, I get the UAC thing telling me an unidentified program is trying to access my computer. The name of the program is InstallHelper.exe, unidentified publisher. Is this some type of virus or spyware? I have clicked cancel, since I don’t know what this program is. I’m not exactly a computer expert, so I’m afraid to do anything. I am running Norton Internet Security 2009 and my my operating system is Vista Home Premium, 64 bit, SP 1. What should I do?