I had trouble downloading for a new printer, and the HP tech was helping me by taking over control of system. While in there he went in event viewer then administrative events and there were over 2500 errors listed. Some were marked critical. He wasn't able to install the printer to my computer, but I installed the disc and it went thru ok. The only thing at the bottom of the screen there is a green thing going around and around and when right click it, it says it is installing. But I already used the printer to print and scan, so I don't know why it shows up. Any suggestions on that also. He said they could damage my computer and would remove them all for $69.95. I didn't do it. So my question is do you know how to get rid of all these errors. I have the vista program if you need to know.