I got my starling netbook 6 months ago and it worked perfectly. Due to upgrades since then I now have problems with printing, sound and YouTube. There are probably solutions to all of these things if I spent hours here on the forum asking questions, and trying different solutions, but it seems like a lot of work. I just want a computer that works. I don't want to be constantly making adjustments.
Upgrade manager calls these things "Important Security Upgrades". Are they really important to security? Would my computer be dangerously vulnerable to attack if I never did an upgrade?