Re:Microsoft explains the lack of Registry backups in Window...
by hirsin on Tuesday July 02, 2019 @01:08PM
(#20337127)
That was a design decision made because install to SD card causes apps to load slowly (to my understanding). It used to be possible but they killed it.
Doesn't hurt that it helps speed up the upgrade cycle since users run out of on-board space sooner.
I'd love if that team would also take a look at Android, where you simply can't not install on the "system drive" aka. main phone flash.