Hi Ram, my name is ***** ***** welcome to JustAnswer!
I'm a little confused by your question. At this point are you able to get into the machine at all or are you completely stuck at the password *****?
If you are unable to get past the login prompt at all, you only have a few options. Can you tell me the make/model of the computer?
Okay, at this point do you have any data on the machine that you can't afford to lose?
Okay, do you know by chance if there is a recovery partition on the drive?
If you were to format the drive then Windows 7 would be removed, yes. But if you were able to perform a recovery process, then no.
What have you done at this point to attempt a recovery?
Okay, instead of F8 let's try F11. On older Compaqs that was usually the get to get to the recovery partition if one actually exists.
Please try that and let me know if you get anything. I will stand by.
Okay, I see.
Well in that case, you really only have to options.
The first would be to try to bypass the password, which will most likely require the use of free third-party password ***** software. As I say, the software itself is free, but it will require that you create a bootable recovery disc. This isn't especially difficult, but it will require that you have access to a blank disc and CD/DVD burner.
I will point you toward the following article:
This article essentially lists every known method for bypassing/resetting a password ***** Windows 7, with links to full instructions for each method. You can look at each method listed, but most likely the one you're going to want to focus on is the one titled, "Hack Your Windows 7 Account with a Password ***** Program."
If none of the methods listed in this article work for you, then your only remaining option would be to purchase an original Windows 7 installation disc from somewhere like eBay and reinstall the operating system from scratch.
One of the above options should do it for you. If you have any other questions on this, just let me know.
And before leaving this page, please use the rating box at the top of the screen to rate the answer at least 3 Stars/OK Service or better so that I receive credit for assisting you.