In a house where there are more laptops than people (never mind the PCs) the various means by which and states in which IT systems die become more familiar.
My sympathy for Fr Blake is the greater because I had to learn the hard way why backing up is so important: in my case it was losing four years' worth of photos.
Buy memory! It is the muggle equivalent of the Pensieve.
It took less than an hour to remove the old PC and install this new PC, all the peripherals, and a decent anti-virus system. Within two days I had reloaded all of the software as well. How different the world is from the 1990s!