I think it's fair to say that personal computers have become the most empowering tool we've ever created. They're tools of communication, they're tools of creativity, and they can be shaped by their user.
Dell fills its computers with crapware, collecting fees from McAfee and other vendors to pre-install 'trial' versions.
Most computers today have built in backup software.
I favor pocket-sized hard drives that travel between home and office, syncing with computers on both ends.
Given the volume of PC sales and the way McAfee runs its operation, I imagine there must be thousands of phantom subscribers - folks who signed up once upon a time and left the software behind two or three computers ago.