Just an observation that years ago Fast and Skip Ahead updates usually meant some headache or two and was expected for the nature of the alpha/ beta offer. Today it seems the other way around. FU's...

Booted up Toshiba laptop, which I updated to 1903 build 18362.116 a few days ago, and left task manager running to check when the spinner usage dies down from 100%. (Will be updating to an SSD soon)....

It could be that you're running the setup off a USB thumb drive?

Odd thing is the APU I have has not been supported since Catalyst version 15 and no auto update would work.

Noticed that under Settings, storage, on an old AMD laptop, 'Other' was taking up 9 GB space. On opening this showed a lot of AMD drivers so removed 4.93 GB,

234900

then removed C:\SWSetup. Old...

Only thing changed for me was System Restore was set to On again.