Describes the cause and action for error messages.
Error Message(English)：
keyboard not working properly
https://www.youtube.com/watch?v=vS89WICustU
Custom keyboard shortcut key not working properly - Page 2 ...
https://www.sevenforums.com/customization/34091-custom-keyboard-shortcut-key-not-working-properly-2.・・・
Keyboard not working properly on Windows 10 - Windows 10 Forums
https://www.tenforums.com/drivers-hardware/87738-keyboard-not-working-properly-windows-10-a.html
mac - Windows Number Pad Not Working - Ask Different
https://apple.stackexchange.com/questions/334249/windows-number-pad-not-working
Top 6 iPad Keyboard Not Working Problems and Fixes Here - iMyFone
https://www.imyfone.com/ipad-issues/top-ipad-keyboard-not-working-problems/
microsoft excel - How do assign keyboard multimedia keys to our ...
https://superuser.com/questions/1396499/how-do-assign-keyboard-multimedia-keys-to-our-purpose-for-ch・・・
Keyboard acts strange in Windows 10 - Super User
https://superuser.com/questions/1050187/keyboard-acts-strange-in-windows-10
My Sony Vaio keyboard is not working properly, typying letters and ...
https://www.justanswer.com/computer/45ad2-sony-vaio-keyboard-not-working-properly-typying-letters.ht・・・
16.04 - keyboard repeat is working improperly - Ask Ubuntu
https://askubuntu.com/questions/999023/keyboard-repeat-is-working-improperly