✔ 最佳答案
It should be like that:
You logged on to the PC without network connection before, or the whole system did not run Active Directory before but now it does. Or, your whole system has serveral domains available, such as 1234 and 5678, so you logged on 5678 before you logged on 1234, so that abcdefg is for domain 5678 and abcdefg.1234 is for domain 1234.
It is because now you are on domain 1234, so that you are now the abcdefg on domain 1234, but no the one on another domain (say, 5678), so you cannot open "another one"'s profile.
If you want to load the abcdefg's file, either logon to the correct domain or contact your system administrator.
It is not the problem of a computer can have 3 or more profile for you, because abcdefg, abcdefg.1234, abcdefg.1234.000, etc are different user accounts in the system point of view.