text:  There's a fix that's been rolled out. The challenge was that when computers were effectively locked up, they got the blue screen of death, as they say. And the fix meant, in many cases, physically going to the machine, restarting it in a particular mode and deleting a file. If you think about companies with thousands and thousands of computers, many of them in remote or diverse locations, getting to those machines and physically getting hands on a keyboard takes a lot of time.