DavidR
16
You aren’t trying to disable explorer load after startup but the program call that is responsible.
Unfortunately there is no easy way to find this and effectively the only clue you have is the folder that is opened in explorer, it really is like looking for a needle in a haystack. So what ever it is it will be something that runs on startup from that folder. You haven’t stated what folder is opened when explorer loads ?
Also useful as a diagnostic tool - Download HiJackThis.zip - HJT Information HiJackThis Tutorial 1 or HiJackThis Tutorial 2 or HiJackThis Tutorial 3
Ignore any 023 reference to avast processes, this is a hiccup in the HJT 1.99.1 (especially missing file entry for avast), if you need any help with any of the analysis let us know.
It may show something that is set to start from that folder, but you are almost checking both autoruns and hijackthis line by line.