I have a 2014 27" i7 Retina iMac. It has slowed to the point of being unusable after upgrading to High Sierra. Simply opening Finder takes more than 5 minutes before the files are done displaying and the beachball stops.
Is there anything that I can try before I restore from a backup?
MacBook Pro, Windows 7
High Sierra rendered my 2012 MB Pro nearly useless, while my 2011 iMac with identical i5 CPU, system and applications hummed along smoothly. The problem turns out to be that the OS is optimized for SSD storage, and it will bog down horribly if storage I/O isn't as fast as it expects. I upgraded the MB Pro to an SSD, and the machine instantly became wildly fast and glitch-free. The 4 GB of RAM is more than enough for routine work, w/ MS Office, a browser, and Acrobat reader all in use - probably because caching is so effective with an SSD.
The giveaway was the one difference between the machines: the iMac already had an SSD. The upgrade is a no-brainer at today's prices; my 500 GB SSD was $45 delivered. More effective than a memory upgrade, and cheaper to boot. Just do it, folks.
And mine too. And it will only get worse. I'm talking to people worldwide having the same problem, with no solutions. Apple geniuses say "buy a new Mac." Now there's a surprise.
Andy - gets worse as they release new updates or "Free" system upgrades. Helps sell computers. Then there is the phony "optimize" message people are getting in High Sierra......... has to stop.
I'm sure you know this first hand. Perhaps you can direct us to your research and results. Thanks.
It wouldn't surprise me. If this is the case, it's disgusting.
Fan boys.
Of course it is 🙂
Of course, blame the hardware. You must have a great crystal ball there, knowing that his HD was failing. And who put it there in the first place?
No - the vast majority don't know what to do and don't complain. Who are you to make that statement? What data do you have to support it? Absence of data is not data
[Edited by Host]
I have the same problem with my 27" iMac after installing Sierra upgrade? don't know what to do?
OK, good luck.
Is this the little 19MB or so stub, or the full 8.4GB installer?
https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?ls=1&mt=12
Hmmm, look at that link again, does it show 4.8GB?
Or this link?
macappstores://itunes.apple.com/app/id1246284741
Hmmm, no idea why some people get the small stub, is there an Installers folder in Applications folder?
No. I have this:
I don't know, maybe trash that 22.7MB download & try that link again?
iMac Unusably slow after High Sierra Upgrade
