There is an interesting tool that works fine taking desktop screenshots (a.e. using keyboard combinations)
https://www.faststone.org/FSCaptureDetail.htm
Normally I utilize 5.3 version picking up only .exe file (taken after a software fresh installation).
Furthermore I am coping, previously .exe file, on any other pcs where screenshots are necessary to be taken.
FastStone Capture 5.3
http://www.oldversion.com/windows/faststone-capture-5-3
Here they are older versions links:
http://www.oldversion.com/windows/faststone-capture/
P.S. I knew this tool during my pharmaceutical working experiences and it was a nice discovery, indispensable for GMP Validations and any other importants IT activities
[update 2022-07-18]
I would like to highlight, that licensed software (20$) version permits to acquire/record audio/video easily (with good compression quality)
