Hi, I am not a programmer and know very little about the inner workings of the computer, so please "be gentle".
My computer has just started this problem and as far as I know, it didn't occur until I downloaded an update to my HP printer.
I get to the login screen, login and the computer begins to load. It continues this for about 30 seconds and I see tray icons coming up, then suddenly I get a .dll error message that says something like "Application failed to start because window is closing..." and then shutsdown.
This does not occur if I boot in safe mode; it continues running and allows me to do a few ops.
When this started, the first error message I received had to do with hpqste08.dll. Thinking that it was associated with my printer, I started in safe mode and removed the HP printer programs. That didn't work. It still begins shutdown, but now the same message has a different .dll listed at the top of the box.
I read that it might be associated with my backup power supply, so I started in safe mode, went to admin tools and disabled the service. Still didn't work.
I've run Norton 360 virus scan from safe mode, finding nothing.
I've run Registry Mechanic, fixing a few minor things, but still the shutdown sequence continues on next startup.
I don't think it's a hardware problem, because it works fine in safe mode. Could this be a virus that updated Norton can't find?