I do not remember the password to log on to my desktop computer. I have moved twice since purchasing the desktop and am not able to locate the original materials. What can I do to A.) Reset the password; or B.) wipe the entire harddrive and start over?

Have you forgotten Windows Password?
Powerful 3 Features:
* 100% recovery rate. Very easy to use, with complete screenshots
* Reset password with a bootable CD/DVD or USB flash drive
* Compatible with Windows 7, Vista, XP, 2000 and 2003/2008 servers etc.
Bypass lost administrator login Password!

There are many password reset tools, but Ihaven't personally tested them. Windows Password Recovery Basic is a widelyspread edition though...

Once reboot the computer with CD/DVD/USB, remove the lost or forgotten passwordand then log in to your computer without any password. Here is its official website, Hope it helps
http://www.windowspasswordrecovery.net/

Forgot Your Windows Password?
Many people think that after having lost their Windows admin password, the only way for them is reinstall their OS. Of course, They are wrong! Here I'm expounding a few methods which can be used to recover Windows password:
Method 1:
The first thing which you check if you forget login password. you know? When we install Windows, it automatically creates an account "Administrator" and sets its password to blank. So if you have forgotten your user account password then try this:
Start system and when you see Windows Welcome screen / Login screen, press ++ keys twice and it'll show Classic Login box. Now type "Administrator" (without quotes) in Username and leave Password field blank. Now press Enter and you should be able to log in Windows.
Now you can reset your account password from "Control Panel -> User Accounts".
Same thing can be done using Safe Mode. In Safe Mode Windows will show this in-built Administrator account in Login screen.
Method 2:
There are many 3rd party utilities which claim to recover forgotten Windows password:
Windows Password Recovery 6.0 is a powerful Windows Password Recovery that works instantly to remove any lost or forgotten password. Simply boot your PC from the supplied Boot CD, and get access to forgotten Windows and administrator passwords in just seconds. Their method is so much faster/easier, and works great!
Learn more about this wonderful windows password recovery tool:
http://www.recoverlostpassword.com/products/windowspasswordrecoery.html

For recovering Windows Passwords in safety, I recommend software Windows Password Seeker. Not only support XP/Vista/2000/NT, but also compatible with windows 7, it works perfectly to recover Windows login Password. I wrote it to a Usb memory card. Booting up and clearing my password just in 4 minutes. You could Search Windows Password Seeker or download it from: http://www.passwordseeker.com

If you forgot the password of your PC then the better option is to reset the BIOS rather then formatting your hard drive .Formatting your hard drive causes a little damage to it so try to reset the password.

If you forgot your password then don't worry you can log on without it. Things you need to do is just open the cabinet and look for the BIOS battery. (It looks like a round cell)



Take it out for 2 to 3 minutes and again put it in its place.
Start your PC it will not ask for the pass word.

And if you want to format your hard drive then remember to take the necessary back up of the data .

Thanks.

You can create a Windows password reset disk to reset your lost Windows password, Windows Password Breaker is a good choice to create the disk. I have created one and reset my administrator password successfully.