KB4457133

[brokensoftware]

This update says:

"...Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows..."

the wording of which suggests turning on certain automatic logging/scanning/reporting features that I may have turned off quite some time ago.

Can someone explain how this particular part of the update affects Windows 8.1 Pro?

 

[brokensoftware]

This update says:

"...Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows..."

the wording of which suggests turning on certain automatic logging/scanning/reporting features that I may have turned off quite some time ago.

Pardon self-reply.

Anyway, yes, this part of the update does indeed reinstall the CompatTelRunner.exe and diagtrackrunner.exe and schedules them and makes certain other changes w.r.t. them. Looking into those processes it may be that simply disabling the two and any scheduling won't be permanent - there are many posts on the 'net about how Windows Update automatically reinstalls/enables them each time it is run (however, I have no personal evidence of that nor am sure which OS version those comments were about - I'm strictly interested in Windows 8.1 Pro).

Sigh. My hardware is not Windows 10 compatible but runs fine with 8.1 - I dread the hit my system is going to take now and in the future.