I know this topic is quite old for now but i haven't found any solution yet I tried to copy-paste some grid in excell when i noticed.
It wasn't copied. My left Ctrl Key work for zooming in and out but other than that. it doesn't work. for copying, pasting, select all, etc.
So i tried again with another application, like DOTA 2, Sketchup, autoCAD, Words, Powerpoint, Nitro PDF, Google Chrome, Nox Emulator, almost every program in my laptop. The Ctrl+any key is not working. Only Ctrl + Mouse Scroll is. I also tried to remap my Left CTRL key to my Right CTRL key. But it became worse, instead of my L CTRL become R Ctrl, now my R CTRL behave the same as my LCTRL which means both of them are affected.
-Uninstall Driver and Restart = Doesn't work
-Update Driver = Doesn't work
-Alt+Ctrl+Fn = also doesn't help.
-Started WIndows in safe mode
Acer Aspire E 14 E5 476G/575G-54U3