Grub's default boot option is stored within a config file found on the partition where your Master Boot Record is located (if you had it installed previously, there may also be grub.cfg files on other partitions, but these won't affect boot sequence). Its direct path is /boot/grub/grub.cfg and it has to be opened as root, ... Read more
By default Windows installs all programs into the C:\Program Files and C:\Program Files (x86) directories. If the hard drive you have the operating system installed on is running out of space though, or you just want to have the OS on a separate SSD, you might want to consider changing these default installation paths. Be ... Read more
The default application is the one you open a file with on doubleclick. In some cases installed programs automatically turn themselves into the default application for files you were happy with, which you might want to change. To do that, rightclick a file of the chosen format and choose Open With... -> Other Application or ... Read more