How to reinstall Mac OS X using a USB drive from Windows

Hello,

It is not possible to install Mac OS from a .dmg disk image; it is impossible.

There is also no legally supplied Mac OS X system in .dmg disk image format.
An installation disk image of type .dmg is necessarily a pirated version.

To install Mac OS X, the method depends on the age of the Mac, that is to say, its original version.

Either you need to reuse the DVDs that came with the Mac, or boot from its recovery partition, for Macs delivered without DVDs (Macs delivered from Mac OS X 10.7)

However, if this Mac had a recovery partition, and its disk has been formatted, this partition may have been erased... it depends on how the disk was reformatted.

https://support.apple.com/fr-fr/HT204904

You can also restart it and reinstall OS X from a prepared USB key for that.

=> How did you manage to format its disk??
Since to do that, you need to have booted the Mac from another volume.

=> What was its original OS version? (what is its release date?, the exact model?)

Best regards.

--
Always provide your system configuration completely - exact computer model, exact OS version.

Finally, I decided to format my hard drive using the macOS utility and following this formatting, I could no longer access the macOS utility (which I imagine is logical), so I couldn't use the "reinstallation of the OS"

Not logical in reality. Why? :

The recovery partition is on the same hard drive as the standard working partition. In reality, there is only one hard drive physically installed in the Mac. And when you boot from the recovery partition (hidden partition), you can erase the standard working partition, reformat it to Mac OS Extended, but you cannot perform a complete format of the entire disk since the recovery partition is in use. You cannot erase a system that is in use. Therefore, the Mac must always be able to boot from its internal recovery partition.

That said, some more recent Macs accept booting from a recovery partition installed on Apple servers. Over the internet, that is. And then, you can reformat and thus erase the entire internal hard drive.
But if the Mac accepts this, it also accepts reinstalling a version of OS X compatible with the Mac in question, provided that there exists a version of OS X that has been used for installation on that Mac.

In short, a Mac shipped with Mac OS X 10.6, thus without a recovery partition, on which a higher version with a recovery partition has subsequently been installed, cannot undergo a reinstallation from Apple's servers unless the version of OS X used is known and listed for the Mac in question. This means that a Mac not recognized by Apple's servers for an OS X installation higher than Mac OS X 10.6 will not be able to benefit from a reinstallation via the internet. This is the case if one has installed OS X 10.7 or higher from an installer coming from another Apple user.

In such a case, one must reinstall Mac OS X 10.6 from an original or universal DVD. Because from Macs shipped with Mac OS X 10.7 onward, there is a mandatory recognition of these on Apple servers (beginning of Macs shipped without DVDs).

It is therefore essential to know the original version of the OS delivered on this Mac, and thus to know the exact model of the Mac in question.

Best regards.

--
Always indicate your system configuration completely - exact model of computer, exact OS version.

If the Mac is capable of booting under 10.6 (a Mac cannot boot under a version earlier than its original version..)

https://www.apple.com/fr/shop/refurbished

then

https://www.commentcamarche.net/faq/30592-installer-mac-os-x-10-6-alias-snow-leopard

Best regards.

Thank you for your very quick response.

Alright, I wasn't aware of that, but I've been trying my best to obtain a legal version, with no luck, as I also don't have an installation DVD since it's a refurbished MacBook and it didn't come with one.

If I've lost all the data, it's not a big deal as I have a perfect copy on the hard drive of my PC. What bothers me is that I currently cannot use the Mac.

https://support.apple.com/fr-fr/HT204904

I tried to repair the hard drive using the macOS utility without success; the report said it couldn't proceed with the repair.
Next, I tried to "start from the Internet Recovery feature," but the loading gets stuck at the beginning.
Finally, I decided to format my hard drive with the macOS utility, and after this formatting, I could no longer access the macOS utility (which I guess is logical), so I couldn't use the "reinstall the OS."

When I press CMD + R simultaneously, a flashing logo in the shape of a folder with a question mark in the middle appears.

http://www.apple.com/fr/shop/product/FD101F/A/refurbished-133-inch-macBook-pro-25ghz-dual-core-intel-i5

Here is the model in question; when I bought it, so after refurbishment, it was running on El Capitan.

Best regards.

Thank you very much, I'll manage to find an installation DVD.

Best regards.

Last question.

Don't you think the initial problem might happen again?

The problem is that my Macbook crashed, so I wanted to restart it but it's impossible, it gets stuck on the screen with the apple in the middle and the loading progress at 3/4 of the way, but it gets stuck there.

Because that's what it all stems from.

Best regards.

Hello,

first try a repair after starting in single user mode - method for any version of OS

https://www.commentcamarche.net/faq/15279-entretenir-et-reparer-mac-os-x-10-6-et-versions-anterieures#demarrage-en-single-user-mode-et-procedure-fsck-sans-le-disque-d-installation

and if the Mac has a recovery partition, after starting from it:

https://www.commentcamarche.net/faq/36405-entretenir-et-reparer-mac-os-x-10-7-os-x-10-8-os-x-10-9-os-x-10-10-lion-mountain-lion-mavericks-et-yosemite#topedit

or if the OS is newer

https://forums.commentcamarche.net/forum/affich-37641569-entretenir-et-reparer-macos-x-10-12-10-13-et-suivants

--
Always indicate your system configuration completely - exact model of computer, exact version of OS.

Unable to reboot in single user mode, as I mentioned in another message, a flashing question mark appears instead, which means the Mac cannot locate the system software according to Apple.

So I followed this documentation:

https://support.apple.com/fr-fr/HT204323

In the section "If your Mac doesn't start up," step 2 takes us back to one of my previous messages:

Then, I tried to "start from Internet Recovery," but the loading gets stuck at the beginning.

So I'm still stuck on this.