Is it possible to downgrade MacBook Air to macOS 10.0 or 10.1?

Remi_202DC wrote:

Hi there,

When I say it's not possible, I'm talking about the services Apple offers. Apple does not allow its users to downgrade their devices.

That's not quite accurate.

You cannot downgrade iPhones, iPads, and iPod touches.

You can downgrade Macs – but only within the particular range of operating systems that your Mac's hardware model supports. Going backwards may be difficult, because you need to do a "clean" install/restore – and also because there is no support for downgrading the formats of things like photo, music, and movie libraries. There are other changes that Apple has made that may raise either incidental or deliberate barriers. But Mac users are not quite as locked into a one-way upgrade model as iPhone/iPad users are – yet.

You should theoretically be able to downgrade a M2 MacBook Air that is running Sonoma to 12.4 (Monterey) (13" model) or 13.4 (Ventura) (15" model). It might not be easy, but I'm guessing it's possible.

You cannot downgrade a M2 MacBook Air to Mac OS X 10.0 or 10.1, operating systems which Apple released for use on PowerPC-based Macs in 2001.

No.

13" and 15" M2 MacBook Airs originally shipped with macOS 12.4 (Monterey) and 13.4 (Ventura). There is a general rule that Macs cannot run older versions of the OS than the one originally shipped with their models. (Therefore old versions of the OS do not need to have code to handle completely new and "unknown" Mac models.)

Beyond that, Mac OS X 10.0 ("Cheetah") and 10.1 ("Puma") are PowerPC-only operating systems. M2 MacBook Airs use Apple Silicon processors that cannot run PowerPC machine code. You wouldn't even get to the point where old OS code choked on seeing unexpected hardware, because not even one line of that code would run.

Hello just for fun i want to ask if its possible to downgrade M2 mac book air to MacOS 10.0 or 10.1

The factual answer to that question is no. It is — literally — not possible.

On certain Macs older than yours, it is possible, but quite tedious, and depending on the particular model Mac, not possible.

While downgrading is not unsupported or "potentially hazardous," you cannot install an older version of MacOS on your computer than the one it shipped with.

Hi there,

Once you've updated your MacBook Air, it is not possible to downgrade it anyhow.

Downgrading a M2 MacBook Air to 10.0 or 10.1 could be also quite hazardous.

Hi there,

When I say it's not possible, I'm talking about the services Apple offers. Apple does not allow its users to downgrade their devices.

Hence, you may consider any other method to downgrade your device as potentially hazardous. As an Apple user, I truly do not recommend you to run any downgrading process, especially to such an old version of macOS.

According to MacTracker, the most recent iMacs capable of running a version Mac OS X 10.1 ("Puma") are

• iMac (Flat Panel) (July 2002 – February 2003)
• iMac (17-inch Flat Panel) (July 2002 – February 2003)

These were the first iMacs with the classic "Pixar iLamp" design – a white, semi-hemispherical base, with a jointed metal arm holding a LCD display protruding from the base.

To get an iMac capable of running a version of Mac OS X 10.0 ("Cheetah"), you'd need go to back at least as far as the last of the "gumdrop" iMacs – the iMac (Summer 2001). Apple introduced it in January 2002 and discontinued it in January 2002 (some variants) and March 2003 (other variants).

I was wondering about that Cheetah & Puma reference myself!

Not much use of eiher except 10.0.4 was the last OS that could pair different speed CPUs & 10.1.5 could actually be run in 96 MB of RAM!

iOS, not unless you jave a backup on a Mac.

• You can downgrade iOS to any version that Apple continues to sign. Apple typically stops signing previous versions in as little as a few days after a new release, so your downgrade option will be limited to the previous version only, and you won’t have much time to do it.

Jzapko13 wrote:

Ok i want to close this question so plz do not reply

You can't close a question. Only the Hosts can do that. They generally only do that if the thread has had not activity for a long time or if the thread has in some way become a problem.

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