Timeline for Downgrading from macOS Catalina to macOS High Sierra
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 7, 2020 at 10:59 | vote | accept | jr123456jr987654321 | ||
| Dec 27, 2019 at 0:21 | answer | added | crock6000 | timeline score: 1 | |
| Dec 23, 2019 at 12:37 | answer | added | Udhy | timeline score: 8 | |
| Dec 22, 2019 at 18:38 | comment | added | Lars A. Gundersen | Be aware that if you manage to do the downgrade itself, there will be trouble afterwards. Apple applications like Mail etc will have been upgraded with Catalina, and subsequently have upgraded/altered their data/settings if you opened them on Catalina, changes that the earlier versions of those applications, which will be reinstalled with High Sierra, cannot know about and therefore cannot parse. You will therefore get various trouble opening these applications again on High Sierra after the downgrade. And no, you cannot run the Catalina version of Mail or Safari on High Sierra. | |
| Dec 22, 2019 at 14:52 | comment | added | At0micMutex | How long ago did you install Catalina? If it's not too long ago, why not boot into recovery mode (CMD-R) and restore from the latest non-Catalina Time Machine backup? | |
| Dec 22, 2019 at 13:47 | history | edited | Nimesh Neema♦ | CC BY-SA 4.0 |
added 46 characters in body; edited title
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| Dec 22, 2019 at 13:45 | answer | added | Nimesh Neema♦ | timeline score: 4 | |
| Dec 22, 2019 at 13:45 | comment | added | jr123456jr987654321 | My mac originally came with the High Sierra OS so it should be compatible with macOS High Sierra. | |
| Dec 22, 2019 at 13:43 | history | edited | jr123456jr987654321 | CC BY-SA 4.0 |
edited title
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| Dec 22, 2019 at 13:41 | comment | added | Nimesh Neema♦ | What is the make and model of the Mac that you are attempting to install macOS High Sierra on? You need to make sure first that your model of Mac supports running macOS High Sierra. | |
| Dec 22, 2019 at 13:37 | history | asked | jr123456jr987654321 | CC BY-SA 4.0 |