gsettings set com.canonical.desktop.interface scrollbar-mode normalsudo apt-get remove overlay-scrollbar liboverlay-scrollbar-0.2-0 liboverlay-scrollbar3-0.2-0/etc/default/apport and set enabled=0apt-get gets stuck, then there are two commands to free it:
apt-get -f installdpkg --configure -aapt-get install hplig hplip-gui simple-scan hp-setup #might have to manually tell it the ip-address of the printer
lpstat -p #find name of printer lpadmin -p <printer> -o usb-unidir-default=true