The methods described here are not for resetting lost domain administrator passwords.As system administrator, you are usually confronted with this problem if users have admin rights on their machines.Here’s a picture of Satellite M55 LCD screen I made this morning.I got this video output as soon as I started the laptop. Here are 12 ways to reset the Windows administrator password on Windows 8.1, Windows 8, Windows 7, Vista and Windows XP. In this article, I describe 12 ways for resetting the administrator password on Windows 8, Windows 8.1, Windows 7, Vista, or Windows XP. Make sure you use the right procedure for your situation.If you forgot the admin password and have no other account with administrator rights, things can get tricky.
Reseating the video cable didn’t make any change and the problem was fixed after I replaced the LCD screen. When you move the LCD screen some lines might disappear or more lines appear on the screen.
There were a lot of vertical lines, and they were changing color without any pattern.
To me it looked like Northern Lights (never seen in real life) :). As soon as I applied some tension to the screen it changed the pattern.
But the reddish video appeared again as soon as I replaced the screen.
I guess it happened because the system board had some kind of intermittent problem with onboard video or video connector.