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Question

Who is logged into my computer from an outside source ?

Answer 1

Please provide full details on the problem you are experiencing, what indication do you see that someone logged into your PC, please provide a screenshot of what you are seeing indicating this happened and also of any other problem you are experiencing.

Answer 2

To determine who is logged into your computer from an outside source, you can use the utility PsLoggedOn. This tool can display users logged on to your local computer as well as those logged in via network resources. It works by checking the registry keys under HKEY_USERS for local logins and using the NetSessionEnum API for remote logins.

You can run PsLoggedOn by copying it to your executable path and executing the command psloggedon. If you want to check for a specific user, you can specify their username, and PsLoggedOn will search the network for computers to which that user is logged on.

For more detailed usage, you can refer to the documentation for PsLoggedOn, which includes various options for filtering the output, such as showing only local logons or excluding logon times.