Hello friends, I'm facing a big problem. My laptop do not start..

when I switch on my laptop, it loads and prompt me to enter Password.and I enter password and hit the enter button. Then it's showing 'welcome' text and nothing happen after that.I'm using Windows seven x64.
I tried to repair Windows installation using my Windows DVD. But it says that the windows DVD that I used is a different version than my windows(something loke that). Of course I used the same DVD. then I tried to run "Startup repair" (provide in Windows installation wizard). It says that it can't solve startup isues..
What shold I do.. I can go for a new instaltio of windows. But sadly I loose everything I have.. I do not have any Backup or System restore.
thank you in advanced...
when I switch on my laptop, it loads and prompt me to enter Password.and I enter password and hit the enter button. Then it's showing 'welcome' text and nothing happen after that.I'm using Windows seven x64.
I tried to repair Windows installation using my Windows DVD. But it says that the windows DVD that I used is a different version than my windows(something loke that). Of course I used the same DVD. then I tried to run "Startup repair" (provide in Windows installation wizard). It says that it can't solve startup isues..
What shold I do.. I can go for a new instaltio of windows. But sadly I loose everything I have.. I do not have any Backup or System restore.
thank you in advanced...
My Computer
- Computer Manufacturer/Model Number
- DELL
- OS
- Windows 7 Ultimate x64
- CPU
- core i3
- Graphics Card(s)
- ATI


