Forgot Windows 7 admin password: Tried many trcks without effect

I'll post the screenshot of the "kernel panic..."error message.
Mine is a Dell Dell Precision Tower 5810 , Windows 7, 64 Bit

Is the one method you tried in your original post similar to this? User Account Password - Change from WinRE

Yes something similar to that using on screen key board.
However, I couldn't see or copy/replace the contents of my PCs drive
when typed "C:" at the prompt, it said "the drive is not ready"

Hey, use Hiren's boot CD.

flyingsuser said:

Yes something similar to that using on screen key board.
However, I couldn't see or copy/replace the contents of my PCs drive
when typed "C:" at the prompt, it said "the drive is not ready"

That tutorial (and others) should mention that the drive letter often times changes.

See step 4 in this tut.

Try using D in place of C.

Use this guide, User Account - Reset Password in Windows 7 I personally used Hiren's Boot CD to reset my password which i forgot a month ago i think.

I have always had success removing passwords with the two software's listed below:

1. Windows Password Unlocker
2. Hiren's Boot CD

Do some research online on how to use and where to get the software's from.

Hope this helps :)

Laith said:

Use this guide, User Account - Reset Password in Windows 7 I personally used Hiren's Boot CD to reset my password which i forgot a month ago i think.

The shortcut has an extra character at the end breaking it.
User Account - Reset Password in Windows 7