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One of our laptops runs Windows 7 in a work-group (rather then domain), and recently, it lost the ability to switch users.

I mean, the "Shut down -> Switch user" just doesn't appear there, and locking user, doesn't show the "Switch user" button.

I tried disabling/enabling the "Hide entry points for Fast User Switching", with no visible effect.

Anyone knows what this could be?

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Have a look at this SuperUsers-Question? Look for the mentioned service fast user switch compatibility service. – wullxz May 24 '11 at 21:30
up vote 1 down vote accepted

Why dont you use Windows key + L combination to switch users?

Or you can go to Command Prompt and use this command to log off/switch between users.

shutdown -L

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Unfortunately, this only logs me off, while I need the user switching functionality. – SyRenity Aug 20 '11 at 1:05
Perhaps the issue is that your machine has lost the Fast Switching functionality. Perhaps this link would help,… – gokul varma nk Aug 20 '11 at 2:57
Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon in the registry and then change the value of the AllowMultipleTSSessions key to REG_DWORD of 1 (or back to 0 to disable). Very similar to how it works in Mac OS X. If you want to script this (eg – for a login script) then you can use the reg command, for example: reg add “hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon /v AllowMultipleTSSessions /t REG_DWORD /d “1″ /f – gokul varma nk Aug 20 '11 at 2:57
Thanks, will try (still have it somewhere in our office un-handled after all this time :) ) – SyRenity Sep 26 '12 at 18:05

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