Stuck on login screen.

Hi,

I've Got Win 7 64bit running on my new comp.
It's a clean installation only 2 games and a Antivirus ( Bitdefender 2010 ) installed, system is up to date, Bios and graph card are up to date, up since a week or 2.
Everything worked fine till yesterday, After playing I shutted down my computer but later in the evening I wanted to check something on the internet and he stucked on the logonscreen.
He's says my PwD is wrong but I'm sure it is not, I check if the Keyboard wasn't in an other language but he doesn't, tried through the utilman to type my pwd but that doesn't respond, neither does the shutdownbutton ( reboot or hibernate doesn't respond also ).
What didn't work :
- Hard reboot and reset.
- Reboot without additionnal drives, ... , only mouse and keyboard.
- Tried the 'utilman workaround'.
- When i go into safe mode automaticaly he's trying to repair, I cant pass through that, he finds something on the 'ntoskernel.exe' repairs it and reboots.
- With the Win7 DvD I can access a cmd prompt but I can't acces my C drive, strangly i find my configuration on a 'D' Drive.
- I haven't a restore Point neither an image.

Before I reinstall, and that would be my very last option because I want to know the cause of it so i can/try to solve it, do you have any other ideas.

Config :
Asus P7P55D
I5 CPU
Radeon HD5850
G.skill Falcon II 128 Go SSD
3 GB Corsair TR3X3G1600C8D

Thx for your help.

Think I found the answer to my problem ... https://www.sevenforums.com/system-se...s-windows.html

EDit: Easy of Access button doesn't respond.