Linked Questions

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1answer
74 views

How to ensure Time-Machine can rollback to a specific-date backup? (not deleting it)

I just upgraded from El Captain to Mojave and I have a Time Machine backup of the instant before starting the upgrade. I need to be able to eventually restore the previous operative system, but I am ...
1
vote
1answer
242 views

How can I clean install of Sierra after trying Mojave upgrade?

I upgraded a Mac to Mojave and found it did not function the same as previous OS. I get a lot of people want to move forward, but I wish to go back to how my Mac was I now need to clean install ...
7
votes
1answer
975 views

tell-tale file to know whether Mojave is installed

I'd like to revert to High Sierra from Mojave via Time Machine. I've already wiped the drive and installed a Mojave Time Machine backup, but I'd like to go back even further. The presence of what ...
1
vote
1answer
1k views

Trying to downgrade to High Sierra but Time Machine restore upgrades back to Mojave

I've been having major issues with Mojave - slow-downs, connectivity issues, crashing - you name it. I tried to downgrade back to High Sierra. High Sierra gets installed fresh, but my Time Machine ...
1
vote
2answers
38 views

I'm using OSX 10.11 what should I be aware of when installing 10.12

I'm a developer, and I'd rather not mess up anything on my system. So I guess, the general. Take a backup advice applies. But is there anything else in particular that I should be aware of? ...
1
vote
0answers
92 views

Restore backup with TimeMachine - Downgrade Possible?

I updated from 10.10 to 10.13 (HighSierra) and I want to downgrade to 10.10. I have a backup on my TimeMachine from before the upgrade. When I restore my computer from TimeMachine, will it overwrite ...
38
votes
4answers
57k views

How can I download an older version of OS X/macOS?

Sometimes it's hard to search for older versions of macOS & OS X on the App Store. This is an attempt to provide the canonical QA for this issue, as per the Meta QA - Where is the list of ...
1
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0answers
3k views

OS X can’t be installed on “Macintosh HD” because the version of macOS is too new

I'm currently running Sierra, trying to download the El Capitan installer from the App Store, but am unable to due to the message in the title. Is there any way around this, or am I forced to erase my ...
2
votes
0answers
408 views

Can I find out the date I upgraded Sierra to High Sierra?

however silly this question might seem, there is a legitimate reason behind it... I would like to go back to Sierra on my iMac. So after creating a bootable Sierra installer I intend to wipe the drive,...
2
votes
1answer
2k views

How to downgrade to macOS Sierra without Time Machine

I upgraded to High Sierra a week ago, my MacBook Pro 2016 (15 inch) is very slow now even in normal daily usage. I wanted to downgrade back to Sierra, but even tho my MacBook came originally with ...
2
votes
1answer
86 views

How long does it take for MacPorts to catch up with new macOSes?

A Wikipedia page is pretty good at showing the precise date when a version of macOS was released. The corresponding wikipedia page for MacPorts is not quite so helpful, and the MacPorts.org download ...
1
vote
1answer
52 views

Beta to regular

I need some advice. I have my Macbook running MacOS High Sierra Version 10.13 Beta. I'd like to downgrade to MacOS Sierra, can someone please help me with resources, a link, or anything similar?
0
votes
1answer
56 views

Will I be able to revert to El Capitain if I install Sierra on my 2015 Macbook Pro?

I have a 2015 (purchased in late 2016) Macbook Pro with the following specs : 2.5Ghz Core i5 8GB of RAM Running OSX El Capitain 10.11.6 It downloaded Sierra and is asking me to upgrade to the new ...
1
vote
2answers
940 views

How to handle malfunctioning macbook after macOS upgrade while avoiding full reset

I have done a terrible mistake and upgraded my macbook pro to macOS High Sierra Developer Beta. I experience multiple malfunction behaviours, including: Missing files right after upgrade. Machine ...
6
votes
1answer
10k views

No user to login in MacOS High Sierra

I installed macOS High Sierra updating to APFS and everything was working correctly. After a couple of days I shut down and went off. I just came back and when I boot there are no users to login as ...

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