Thanks for sharing. Why wouldn't the disk be inserted? If you are really concerned, turn off updates, and DEFER FUTURE ONES. Then tell the OS that your network is a METERED connection. You will only then get the updates after you manually download them. BTW, this will not update any virus definitions, so BEWARE!
You can also TURN OFF FAST BOOT before APPLYING the changes. I have seen this help with this indication.
I recently had to RESTORE from a valid backup. When you get it back up, you may want to configure restore points for the future.
AHH yes, software as a SERVICE instead of a PRODUCT. CRUD Model!