Hi Ben,
I think you can also find some clues from UserEnv log. However, UserEnv log
is not enabled by default, please follow the steps as below to enable it:
Warning If you use Registry Editor incorrectly, you may cause serious
problems that may require you to reinstall your operating system. Microsoft
cannot guarantee that you can solve problems that result from using
Registry Editor incorrectly. Use Registry Editor at your own risk.
Use Registry Editor to add the following registry value (or modify it, if
the value already exists):
Key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
NT\CurrentVersion\Winlogon
Value: UserEnvDebugLevel
Value Type: REG_DWORD
Value Data: 10002 (Hexadecimal)
UserEnvDebugLevel can have the following values:
NONE 0x00000000
NORMAL 0x00000001
VERBOSE 0x00000002
LOGFILE 0x00010000
DEBUGGER 0x00020000
The default value is NORMAL|LOGFILE (0x00010001).
Note To disable logging, select NONE (where the value is 0X00000000).
You can also combine the values. For example, you can combine VERBOSE
0x00000002 and LOGFILE 0x00010000 to get 0x00010002. So if
UserEnvDebugLevel is set with a value of 0x00010002, this turns on both
LOGFILE and VERBOSE. Combining these values is the same as using an OR
statement: 0x00010000 OR 0x00000002 = 0x00010002
The log file is written to the %Systemroot%\Debug\UserMode\Userenv.log
file. If the Userenv.log exists and is greater than 300 KB, the existing
file will be renamed to Userenv.bak, and a new log file created.
If you didn't find any clues, you can also send me the log, I'll try my
best to be of assistance. My email is: (e-mail address removed)
Have a good day.
Best regards,
Vincent Xu
Microsoft Online Partner Support
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