Drive Mapping for the Home Folder May Overwrite the Local Drive Mapping After You Apply Windows 2000 SP2 (303290)

SYMPTOMS

After you apply Windows 2000 Service Pack 2 (SP2), a drive letter disappears from My Computer. If you look in Disk Management, that volume drive letter is missing. You can re-assign the same drive letter back, but still cannot access it. If you look at the properties of the volume, the file system type is Unknown and its capacity reports zero bytes in size.

Another Symptom might be that the first user that fails to login will get no error messages and then the Welcome to Windows dialog box appears, which prompts you to press CTRL-ALT-DELETE again. From then on, any further attempts to login by a user, whether they are normally able to login or not, will fail with an error message as follows:

Title:
Logon Message: The system can not log you on (1F). Please try again or consult your system administrator.

CAUSE

The drive mapping for a user's home folder in the user's profile overwrites a local drive letter.

For example, if the local CD-ROM drive is assigned to drive F: and you have a user's home folder drive mapped to connect to drive F:, after that user logs on, their F: drive points to the home folder and also removes the local drive letter assigned to the original volume, in this case the CD-ROM.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English-language version of this fix should have the following file attributes or later:

   Date        Time    Version        Size     File name
   ------------------------------------------------------
   07/27/2001  01:38p  5.0.2195.3963  332,560  Msgina.dll

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.

MORE INFORMATION

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes