Installing Ubuntu Alongside Windows

Some brief notes on installing what I think is a great alternative or backup to a Windows OS on a PC:
NB: If installing Windows do that first (see an earlier post):

1. Create USB stick
   https://help.ubuntu.com/community/Installation/FromUSBStickQuick
2. Follow instructions on
   https://help.ubuntu.com/community/Installation
3. Once installed check for updates: System/Admin/Synaptic update manager
4. Install StartUpManager to edit the GRUB menu:
   https://help.ubuntu.com/community/StartUpManager
5. Run it (System/Admin/StartupMan) and change the timeout to 3s and default OS to Windows if you wish