My new (2019) MacBook Pro has been stuck on “Estimated Time Remaining” for over 36 hours now. I’ve lost confidence that it’s working. Is there anything I can do to reverse this process and go back to what I had before starting this upgrade?
in the sense of pressing some button and undoing anything while it is virtually frozen, the answer is no you cant do anything.
odds are highly likely that if you just shut down yr MacBook Pro, and then restart, that it will all be ok.
but it really depends on why and where its stalled and that is usually not knowable.
whenever i update to a completely new release (as opposed to a point update) i would imagine that in about 20% of the cases the initial installation stalls.
every time i have just stopped it by shutting down, there has been absolutely no problem.
but, with Catalina, my MacBook Air initial installation stalled during the process (actually it got through the actual OS installation but stalled at the Mail update part).
i needed to shut down. i did.
but sure enough i did end up with Mail related problems.
36 hours is a lifetime to be without a work tool. but i would rather try to deal with problems later then just let it go on and on.
if you have done a backup just before installation, and, you have iCloud syncing. then just about any problem encountered later can be handled.
