Need help with Startup repair for windows7?

[Peyush]

I tried it many times but can't succeed please help me out.

When i turned on my pc (windows 7) it shows a screen which says "Windows error recovery"
and it shows following options
*launch startup repair(recomended)
*windows start normally
I selected the first option. Then, a screen comes and it says "startup repair is checking your problems". After that it says "Windows cannot repair this computer automatically" and it shows following two options:
*send information about this problem(recommended)
*don't send
I choose the first one. Then it shows "view diagnostic and repair details" and "view advanced options for system recovery and support"
i choose the advanced option. Then it asked for passward and i leave it blank and select OK.
Then it shows following list of options:
choose a recovery tool
*startup repair
*system restore
*system image recovery
*windows memory diagnostic
*command prompt
*dell factory image restore
I choose the first option "startup repair". Then it searches for problem. The after that it shows that "startup repair cannot repair this computer automatically" and following two options:
*send information about this problem(recommended)
*don't send
I select the first option. Then again it shows that "windows cannot repair this computer automatically" and two options:
*view diagnostic and repair details
*view advanced options for system recovery and support

please help me out i am stuck here for hours.