Railworks America

Try 'Ctrl + S' and see if that works at all. Not sure what could be wrong though.

Just press the PrtScn key.

When the F12 screenshot capture stops working, it's usually a sign that something has been changed in your Steam's options. Please check that:
1) you have enabled "Steam Overlay" in TS2017's options inside Steam (must be switched on for all games where you want to use the screenshot feature of Steam)
2) that screenshots and the Steam Overlay in general is enabled in Steam's global options.

Both *might* have changed after switching to a new computer.

Cheers
Michael

One method sends them to your picture folder, the other method sends them to your Steam folder. The Steam folder has some numbered folders you have to drill down into. The automatic upload window doesn't happen anymore. On the Steam window go to view, screenshots and you can get to the shots from there.