system
25
About your administrator problem:
When you are at the login screen, hit CTRL + ALT + DEL two times in a row. This will bring up the “old” Login prompt. It will ask for your login (login) name and password.
If this doesn’t work, log in as administrator in safe mode and check your accounts (username and password etc)
And when your finally logged in as administrator (not in safe mode) run your scanners again, the redo and repost your hijackthis log.
–lee