Common Problems

You may have keybindings set for your computer that supersede the keybindings set in Emacs. For example, macOS takes C-<up>, C-<down> and C-<right> for Mission Control and Application windows. To disable these keybindings, go to your Apple Menu > System Settings > Keyboard > Keyboard Shortcuts and then locate the settings you’d like to disable. Uncheck them. Full instructions for Macs can be found here. Instructions for PCs can be found here.

Emacs is on the older side. Newer installations seem to have some problems with loading in some packages. For example, use-package may not install with M-x install-packages; install it from the list that M-x list-packages opens instead.