My Win2000 Pro computers are part of a domain and users use roaming profiles. I recently received this error message from several of the computers: 'Event ID: 1000, Source: Userenv, Type: Error,User: NTAuthoritySystem. Description: Windows can't log you on because the profile can't be loaded. Detail: There is not enough space on the disk.'
So, I logged on as a local administrator and checked the size of the profile and disk space on which the profile located. The profile size seemed normal and there was enough space on the hard drive. I deleted the user's profile in Control Panel and asked him log back in: no error message popped up. However, a few days later, the problem happened again on the same computer under his account.
There are many different reasons for this error. The only way to figure out the cause is to turn on user-environment debug logging. For more information about how to turn on this log, see http://support.microsoft.com/default.aspx?scid=kb;en-us;221833.
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