If you can get into recovery mode and into command line, you can use
<pre>net user administrator /active:yes</pre> to enable the default administrator account in Vista. You will be able to log into this account with no password.
When you are finished, to avoid a security risk, enter command line again using "run as administrator" function and use the command <pre>net user administrator /active:no</pre>
Hope this helps!
Last Wiki Answer Submitted: August 22, 2011 9:29 pm by LinuxCiscoman775 pts.