aoa,
We have networking in university where we are connected to a domain. Every student have to log on any pc by entering his username and password. Some time we want to go out for 5, 10 minutes and want to reserve that pc for this time but problem here is, we cannot lock screen by win+L or (ctrl+alt+del) manue. How can I do so. I need method to solve this issue for me or any software by which I can lock screen for this time. Software should be portable because we cannot install softwares in lab computer.