Fast Switch User in Windows

There is a way to change users from the command prompt without logging off Windows.

1) Press Ctrl+Alt+Del to launch Task Manager and look for a process in the list called explorer.exe.
Click the End Process button.
2) Next, click on the file menu and choose New Task (Run…)
3) Enter “cmd” and hit enter to open the Command Prompt window
4) Inside the Command Prompt, use following syntax:
runas /user:username “explorer”
For example to switch to “Administrator” account, use the following command:
runas /user:Administrator “explorer”