Yesterday, I allowed my laptop to download Windows 10 Features update version 2004. It spent a few hours (!) downloading the update (it is apparently a humongous size) - and then more hours installing itself.
It got to 84% complete - and then hung. Having had not dissimilar experiences in the past with Windows Updates, I left the laptop plugged in and running overnight - and got up to find it was still stuck on 84% complete. I've managed to undo the changes the system made during the update process, and fingers crossed, I'm back to normal. I've had a trundle around the internet, and it would seem that this particular update has been issued by Microsoft even though it is riddled with errors, and has caused many black (and blue) screens of death.
The moral of the story is - do NOT let your PC download and attempt to intall "
Features update to Windows 10, version 2004" - it ain't worth the hassle
