My mum made the mistake of allowing herself to be tricked into providing remote access to her laptop by cybercriminals. I reset the computer to factory settings and flushed the BIOS. Next I tried to upgrade to 8.1, but I first needed to install some updates (particularly KB2871389) in order for the upgrade to appear in the Windows' Store. I first went the whole hog and installed all the updates available, even though I only really wanted to replace the OS. That took all night long. On attem