It appears as though the history in the task manager doesn't get recorded while the computer is on the lock screen. I have a PC I'm using as a server and I would like to see the last 4 minutes of usage when I RDP, (you get 4 minutes when you set update speed to low).
If I intentionally cause some usage, like disk usage on file share, the history isn't recorded unless I'm currently RDP'd or logged in locally.
The system is server 2012 r2, but I've seen the same exact behavior in 8 and 8.1. If the system is displaying the lock screen, even though the user is signed in, no history is recorded.
How can I get it to keep recording history?