Force log off a user from Windows 10 pc

I currently have bitlocker encryption enabled on a Windows 10 pc. With bitlocker, only one user is allowed to be logged on at a time. By default Windows 10 has a setting that keeps the last user logged in if they didnt explicitly log off, even if the pc is restarted or shutdown. Is there a way to log a previous user off so that another user can log in to a pc. The first user is unavailable to log in then log off.
CBBNet AdminAsked:
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Joe FulginitiNetwork EngineerCommented:
Bitlocker will not prevent more than one user from logging in at the same time.  Sounds like fast user switching might be disabled in GPO. Check the following: Computer Configuration > Administrative Templates > System > Logon

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McKnifeCommented:
CBB, your observations about bitlocker are wrong and also the reported behavior with logged on users "surviving" a restart. Please describe in detail what you do and what behavior you observe.
bbaoIT ConsultantCommented:
you may simply disable Fast User Switching. for the steps and screenshot for Windows 10 interface, please see below link.

https://www.technipages.com/windows-10-enable-or-disable-fast-user-switching
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CBBNet AdminAuthor Commented:
Ok the one user log in is probably a feature of another third party security software i am using, but the user being kept logged on is a feature of Windows 10. It can be turned off in Settings -> Accounts -> Sign in Options. My issue is that i cannot log in. I am stuck at the log in screen and the only user being offered to enter their password is unavailable. Is it possible to force log off that user? Maybe through recovery/ command prompt?
Joe FulginitiNetwork EngineerCommented:
My guess is this computer is not domain joined and only has one user account? If the computer has bitlocker enabled and you don't have the recovery key you don't have many options here other than to reinstall windows from scratch.
CBBNet AdminAuthor Commented:
No the computer is not joined to a domain. It has several users but is only allowing that last signed in user to log back in. I have already passed the bitlocker authentication. It is the Windows log in that i am stuck at.
McKnifeCommented:
You should use one of the many tricks to activate the built-in administrator account. Using the utilman trick will require you to have the Bitlocker recovery key and to be able to use the bitlocker unlocking commands (manage-bde -unlock c: -rp 111111-222222-...yourrecoverykey)
With the admin active, this will work out.

If you need help with that, just say.

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