Rpa express windows in locked mode

I have automation which is used to login to web based application perform clicks and xpath based checks and save the screen shot using alt+printscreen.
When windows desktop is locked using ctrl+alt+end or cltr+alt+del
For this kind of automation can rpa express latest version support this feature.

No, it takes a screenshot of what exactly displayed on the screen

so in system locked mode rpa express works fine or is there any limitations.

It does not work if the system is locked