Fast User Switching allows users to sign within a computer system when some other users continue to be signed in.
Pro and Enterprise Users: Disable Fast User Switching with the Group Policy Editor
When you’re using Windows 10 Pro or Enterprise, the simplest way to disable fast user switching is to try the Group Policy Editor. It’s a fairly robust application, so if you’ve never used it earlier, it’s worth taking some time for you to determine what it is able to accomplish.
In Windows 10 Pro or Enterprise, hit Start, write gpedit.msc, and press Enter.
In the Local Group Policy Editor, from the left-hand pane, go to Computer Configuration > Administrative Templates > System > Logon. On the right, look for the “Hide entry points for Fast User Switching” setting and double-click on it.
Inside properties screen that opens, select the “Enabled” option and after that just click “OK.”
It's easy to exit the Local Group Policy Editor. Sign out of almost any profiles in which a pc user is signed in (or reboot your laptop). Whenever you’ve signed back your profile, try your update by confirming that method to alter computer users has been eliminated from your Start menu. In case for those who desire to enable Fast User Switching once more, simply just go through the exact same method and set that option returning to Turned off or Not Configured.