Windows 10: Ctrl + Shift + Down not working

Well, technically everything the same as in https://answers.microsoft.com/en-us/msoffice/forum/all/ctrl-shift-down-not-working/c639e462-e2d2-4b71-95a1-e8fe16e04fc6 except i found this issue in pycharm instead of excelthis key combination doesnt work in any app, also i didnt download new soft or anything, no suspicious process as well, and i cant click on "modify" button in the Apps and Features on any program, i also tried to restart pc ofc, used on screen keyboard multiple times - didnt work, just press command is suppressedlike it doesnt pass, release works fine, also arrow itself,

:)

 

CTRL+SHIFT+8 and some others not working

Okay thanks. Didn't know that tool.
It does list Ctrl+Shift+, 3 & 8. But it doesn't say what they're registered to. (And nothing seems to happen when I press them.)

The tool turns up a very short list, by the way, compared to the screenshots on that site. Just these three plus:
Hot Key : Alt+Ctrl+Delete
Hot Key : Alt+Ctrl+J (I know what this is from)
Hot Key : Alt+Ctrl+K (Kindle)
Hot Key : Alt+F4

 

ctrl and shift not working

sorry that im writing without capslock but they stopped working. for some days my ctrl and shift dont work in the way they used to work and they need to work. for example ctrl c ctrl v ctrl a commands don't work. in my browser when i try to press shift
and plus or shift and the line next to it it zooms in and out, sorry i cant show them because i can't use them like i said, also trying to shift plus letters works just on some like A, G. but for the rest of the letter it just does commands it doesnt make
caps letters but random commands . pls i resally some help . thanks

 

Ctrl shift n is not working

Ctrl shift n is not working in any program. Nether chrome nether windows explorer. After I installed the avast secure browser the ctrl shift n was set to open this program. I tried to disable it. I tried to uninstall the program and then the ctrl shift
n didn't worked at all. I reinstalled it and the problem keeps the same. Researched a lot and got no solution. Please help me