I've noticed this for a few different apps, but one that's more common is KLite codec pack.

Whenever I install an update (which is weekly), the k-lite installer will say "Display Fusion process is locking files, preventing update".

I'm required to kill the DF process, click OK on the installer, and re-run DF after the update.

Is it possible that this can be investigated to see if the locking is required, or if the files can be opened in a more permissive way?

I use an app which automatically updates a wide range of installed software.

When it runs, it downloads to a temp file and spawns a child process which is the updater.

eg.
C:\Users\Chris\AppData\Local\Temp\eabb0cd9-18af-11ed-8cda-bce256a95a14\target.exe


This is a random path, and only exists for less than a minute while the updater runs.

It looks like the compatibility feature doesnt extend to child processes executed by the parent as a still get the lock.