Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

After windows loads, instead of it showing the login screen it simply shows a black screen with a cursor.

I know why this error occurred. I was working on a clients computer and they had a password on it. So I attempted to use Spotmaou password removal tool. After that this is when it started happening. So i figure its something with the registry.

A re-install is out of the question because it is not a OEM key and they no longer have the key. Boot up repair does not work because its not a boot issue. Its a windows issue. And i've found out you cannot do a Windows Repair install on a computer you can't boot.. Which is stupid.

Also Safe mode does the same thing.

share|improve this question
I hope you backed-up the SAM record for the windows installation; if you didn't, you can recreate it, but you'll lose all user account settings – AndreaCi Oct 17 '12 at 15:02
nope.. Sure didn't. I've never had any trouble out of this disk. – alexander7567 Oct 17 '12 at 15:03
check in C:\Windows\System32\config\; maybe that disk create a backup of the SAM file – AndreaCi Oct 17 '12 at 15:06
There was a backup of it from around a year ago. I renamed the orginal sam file to sam.old and renamed "sam.bak" to "sam". But still the same results. – alexander7567 Oct 17 '12 at 15:14

After doing some research i've found how to get the CD-Key from an offline computer. After doing this I was able to re-install the computer. Here are the steps how


  1. Load computer with UBCD4Win
  2. Click Start
  3. Click Programs
  4. Click Info. and Diag. Tools
  5. Click KeyfinderPE
  6. Click Browser
  7. Navigate to Hard Drive Windows Directory (example: C:\Windows)
  8. Wait for program to load Hive
  9. CD should now be displayed
share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .