Here is an incident from $WORK that happens at least once a month these days. It's very annoying.
It starts when the network admin staff sends an email that they will be pushing a Windows patch to all desktop machines in a few days. That's not horrible. Every networked system has some security holes somewhere that need to be patched (once the patches are available). And at least Windows admins can automate installation so we never have to repeat the visit-every-PC-in-the-building process that was too common in the mid 90s.
And, yes, while Windows sucks eggs, it meets the four minimum criteria that any operating system must meet before being work ready:
The next step is when the patches are installed, usually at noon, a couple of days after the warning email was sent out.
The next step is the helpful dialog box that alerts me that the machine must be rebooted. If I do nothing, the machine will automagically reboot in 12 hours (and counting). This dialog pops up periodically to remind me I really need to reboot, and presents me two buttons: hide and reboot. (The default button is Hide, thankfully enough.)
Now that the machine has been updated, and the reboot countdown started, the "you must reboot" dialog box, once hidden, will reappear at random intervals throughout the rest of the afternoon. Just to be extra thoughtful, this dialog always pops up on top of all other open windows.
Of course, the very next thing that happens, after being hidden for some random interval of time, the dialog pops up on top of all other windows, while you just happen to be typing the letter r. Naturally, you must be ready to reboot. Forget the fact that you have a dozen windows open and various tests and unsaved work in Firefox.
In user interface design circles, this is known as being "as useful as a rusty nail in the eye." Sheesh!
This feature alone is sufficient cause to use any other operating system that meets the four criteria listed above to do Real Work at the office.