Oh THAT problem.
On all windows computers/laptops, the Print Screen or PrnScrn key has a line an above/below it is SysRq. If your PrnScrn label is ABOVE the SysRq label, you can print screens normally. If it is below, then press Function, or
Fn, hold it and press PrnScrn. It should print the screen unless your Fn button ain't working.
Hope that solves your problem as it occured to my laptop too.