All our servers and company laptops went down at pretty much the same time. Laptops have been bootlooping to blue screen of death. It's all very exciting, personally, as someone not responsible for fixing it.
I work on the field. They pushed an update, their software loads a low altitude driver on the kernel at boot time. The driver is causing servers and workstations to crash. The only fix so far is to reboot in safe mode, restart, uninstall and restart again.
Imagine having to do that by hand, on every windows device in your organization.
I was with a large organization as tech support and upper IT pushed out an update that corrupted everybody's certificates to log into the network. Imagine having to talk 40k users, who most of them whined and bitched to us about having to do all this work to fix the computer, through a removal of the old certificate, reboot, get the new one after logging in with a backup account, rebooting again and verifying that they can log in. Each computer was about 20-40 minutes to get done. We only had about 50 of us working at peak hours. It took about 2 months of non stop calls to get them fixed.
YIKES ... I got one worse still ... I was NOC at a company where one of my friends from Desktop services made a mistake pushing hard drive encryption and basically corrupted the hard drive of a large number em laptops. It wasn't everyone thank god because they were rolling it out in stages ... but it was THOUSANDS and there was no real way to get it back. Every single one had to get re-imaged.