Turning Off Your PC During An Update? Here’s What Happens. > We all get that blue screen that says ‘Getting Windows ready Don’t turn off your computer’ with the dotted circle that keeps on going until either your PC reboots or shuts down. But what happens if you turn it off or simply pull the plug out of impatience? Many have claimed that the users are simply claimed that the Operating System i.e. your Windows 10 crashes hence a huge loss for users instead. However, that is not entirely true as Windows has a mechanism called ‘Component-Based Servicing’ (CBS) which oversees the majority of the updates for numerous users over the internet. How this mechanism works is that the CBS first goes through your PC storage and checks if the proper files are present before it can even opt for updating.