It all started with KB4517211 which created a spooler problem, no problem deleted the update.
Next KB4524147 installed with the spooler problem fixed but no M$ created a even worse problem. Click on the Start icon & Windows asks for a reboot. Deleted update.
Now I have two problems, spooler & Start.
Tried my fixes including the Start troubleshooter…no go.
Finally restored from a restore point. (wasted time 4 hours)
Image Ver: 10.0.18362.387