this is why i always clone my main hdd and only do ofline updates
seriously, people need to be taught to minimise risks and there are laods of programs out there that can help,
norton ghost and i cant remember the free oes
1tb hdd's cost less than £50 now so there is no excuse, it is so simple to install ghost then burn the bootable cd then use that and click on backup pc
then if pc breaks do the same but click on restore instead, some people just bring it on themselfs, its the same thing that would happen if they had a powercut during an update