Fixed - Windows 7 Home Won't Accept My Windows 2000 Server Share Login and Password

For whatever reason my Windows 7 machine stopped accepting my credentials for my Windows 2000 server mapped drive shares. I had been using mapped drives in Windows 7 for at least a year. I did have a stuck Windows 7 upgrade, that forced to to go back to a previous restore point. I also ended up reinstalling my antivirus. I could login via remote desktop, so I knoew the cedentials were correct and the account was not locked.

The solution that worked in about 30 seconds was adding the LmCompatibilityLevel registry key to my Windows 7 Home PC:
  1. Open Notepad (or your favorite text editor):
  2. Copy the text below and paste in Notepad:
    3. Windows Registry Editor Version 5.00
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa]
    "LmCompatibilityLevel"=dword:00000002
  3. Save the file on your desktop (or anywhere else) as name.reg - ".reg" is important.
  4. Run the file and press yes on the 2 pop ups.
There is no need to restart -my mapped drive just began working again. Hope this helps you out. All the file above does is change one registry key.

The original reference pointed here, but I don't read Norwegian:
http://www.ntnu.no/itinfo/read_article.php?aid=711 


Microsoft's documentation on the registry LmCompatibilityLevel key is here:
http://technet.microsoft.com/en-us/library/cc960646.aspx


I found a useful (but long post) on the problem here:
http://social.technet.microsoft.com/Forums/en-US/w7itprovirt/thread/e08c3500-a722-4b44-b644-64f94f63c8e5

and a shorter one later found here:
http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_programs/windows7-adds-the-computername-to-the-username/606ab4d3-1863-4160-9fc0-b6dfa9533d88




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