Stuck on "Start Windows normally" and "Launch startup repair"

[Wafty]

Stuck on "Start Windows normally" and "Launch startup repair"

I am stuck on "Start Windows normally" and "Launch startup repair"
When I choose "Start Windows Normally",it gives me blue screen with the following error:Unmountable_Boot_Volume.On "Launch startup repair" I am stuck on the Windows 7 wallpaper with cursor and can't even open Cmd trough Shift+F10.I've tried re-installing windows from USB stick and I am also stuck on "Setup is Starting".Any help please,and how much I am screwed?
P.S-On Advanced boot options I can't use Safe Mode,Safe Mode with Networking,Safe Mode with Command prompt and Last Known Good Configuration,it gets me back to "Start Windows Normally" and "Launch startup repair".

 

[paul1149]

Time to boot to an external testing/repair environment, such as a Win7 Repair disk or a hard drive test disk.

 

[Wafty]

I forgot to say that I have password on my pc,and I am wondering if this thing is not letting me re-installing windows,startup repair and launching it in safe mode.

 

[paul1149]

A windows password shouldn't be a problem.

 

[Mellon Head]

Reinstalling gives you the option to reformat, which will bypass the password on your Windows install. It will wipe everything, but if you were considering reinstalling, that wouldn't matter as you would have to reinstall everything anyway.

 

[Wafty]

Then I don't know why its stuck on "Setup is stsrting" when I try to re-install it.I guess the only option left to do is to try the Win7 Repair disk.