It is very simple to look up the used passwords for wifi connections on your computer:
netsh wlan show profiles
netsh wlan show profile name=TypeOneOfTheListedSSIDsHere key=clear
Category: Laptop
Can’t set your screen brightness in Linux?
sudo nano /etc/default/grub
Change
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="
Then, save the file.
sudo update-grub
Restart computer