Account User empty

If your account User is empty you car resolve this problem in this way:

1. Open a shell windows (cmd comand)
2. go in c:\windows\system32 directory
3. run the comand following ( regsvr32 jscript.dll )

If that does not help, execute the following commands as well.

regsvr32 nusrmgr.cpl
regsvr32 /i mshtml.dll