I Also have a computer problem

[chrisab508]

so, everytime i go into control panel, then user accounts, then once i click on the button that says "change the way users log on and off" a little mcafee window pops up (from mcafee virus scan) and says that it has detected a suspicious script and has stopped it, and its called "mshta.exe" then a little window appears saying microsoft something has encountered an error and must close and i can choose don't send or send for the error report. This has just starting happening, i don't know why. Any help would be great.

thanks.