Windows 10: backlight key color/ Nitro sense isn't working

Hello, I have a problem with my laptop's keyboard. After the PCH was changed by the technician, the backlight key colors aren't changing anymore. My laptop is an Acer Nitro 5 AN15-55 Windows 11. Additionally, the Nitrosense app isn't working anymore.

:)

 

Printer isn´t working after latest update.

After the latest update from Windows, my Canon Pixma ip6600 printer isnt working. In Device Manager it shows up as working properly but when I go to print it isn´t listed as an option in any programs. Troubleshoot suggests it´s a USB 2 printer on a USB
3 port and that that´s the problem but that cant be since it worked fine before the update. I´ve tried to uninstall and plug it back in but that doesn´t work either.

 

asus keyboard backlight

After upgrading to windows 10 pro, backlight isn`t working, although I did install ATK

And fn+f4 also not works

 

Cortana isn´t working

When I hit enter, it did something, but there´s still no Cortana, even after restart. So I tried it again, but now it says that it failed, because it´s already installed and it´s working in PC. So it should work, but Cortana still isn´t here.