Windows 7 usb install iso mac


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I've been trying to post this to confirm that it works for some time, I just hope it helps someone else, because it is a very easy solution. Here are the Diskpart commands used to prep the Flash Drive, just to have them here in case my Link does not work:. When I tried to inject the image, Transmac told me that the drive was "write protected". So basically, the USB drive cannot have any high level formatting, the Windows system should detect the drive as "not formatted" for this to work, which it will if prepped right with Diskpart.

I had this problem with a friend computer, it was an old iMac and I'll tell you it is not going to be easy.

The first thing you have to do is make sure what model you have the year when your computer has been released then check on the official apple website to see what is the latest macOS or Mac OS X version available for you computer. In this case, you have to download the dmg file, that can be found on the web, for example, one websites that provides some macOS and Mac OS X is this for El Capitan, if you need another version, I'm sorry but you have to search for it.

Here things start to get a little tricky. First of all you have to flash the image on a USB drive, I recommend etcher, that works on everything Mac, Linux and Windows too it's extremely easy to use and you just need to select the drive and the image and etcher will do everything by itself, plus it's free here.

Create a bootable flash drive for installing Windows

When the USB drive is ready you can plug it in you mac and press alt option while booting, you have inserted a firmware password, it will ask you to unlock the firmware by inserting that password, else it will take you to all the bootable drives, including your USB device. If you see the mac logo with a stop icon over it, it means that you downloaded a too new version that is not supported from your mac, else it will start.

When it start, it won't install, saying that the system can't verify the downloaded image, that's why you have to navigate on the "utilities" menu on the top bar and open the terminal. That's basically because every image of mac has a certificate that can expire, so, if the certificate is expired you won't be able to make it work, unless you change the date the date is different from mac version to mac version, so based on that you have to change it, usually just search for when was that version released and se the current date to that date or even one or two days later to make it work.

Then try to install the system, if this does not work again, you can start the installation without verifying the image, but you should really trust the image you're using from being corrupted or modified just to make sure the download went right, use the SHA-1 code to make the file has been downloaded right.

So, to proceed without verifying the image, from terminal, type in this command: sudo defaults write com. Is possible that you won't need the sudo at the begin, in that case just remove it from the command and start from "defaults" Now you should be able to install macOS from a USB drive Just a little thing, make sure to have formatted the disk before proceeding, I would recommend to make a partition that takes the whole disk in mac Journaled format, then if you want you will be able to encrypt the disk the installer will ask you to do that later , instead, if the disk was encrypted before, you will have to insert the encryption key of the disk to continue the installation process.

Really hope this help, I spent a lot of hours to do this on a really old iMac from Good luck! In my humble opinion, the easiest and a free solution for creating bootable drives is Rufus. You will be able to download a copy of old one version of powerISO by provided links this tutorial. I've tried many tutorials on how to create a mac bootable USB drive from Windows but none of them worked. Please find the details on my github page. Thank you for your interest in this question.


  • How to Create Windows 10/8/7 Bootable USB on Mac (Mojave/Serria).
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  • Step 1: Confirm partitions before inserting USB.

Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count. Would you like to answer one of these unanswered questions instead? Listen now. Home Questions Tags Users Unanswered.

Why You Need a Bootable USB Drive

Ask Question. Asked 5 years, 2 months ago. Active 3 months ago. Viewed k times. Any help would be greatly appreciated! Thanks for your response. However, the problem differs from the one you linked to since I do not want to run an OS X installation in Windows running in bootcamp on a Mac. What I want to do to is easily achievable using createinstallmedia or Disk Utility.

The question asked is about how to create a bootable Mac installing USB in the windows embitterment. Basically your question seems to ask the same thing. Yes, more or less. However, the answer provided isn't helpful in my case I'm afraid. Neither do I have a recovery partition available, nor another osx. In fact, that is exactly the problem at hand. Michael D. Dryden Michael D. Dryden 1, 7 7 silver badges 10 10 bronze badges.

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So after the first 2 generic steps at the start of this post, we'll be taking separate steps for Linux as shown below. Exellent, now we are ready to burn the ISO image.


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Let's cd into the directory with all the ISOs that you have and burn it using the dd command. Useful tip cheers Jim! That's it, we're done! Eject the USB stick no need to run any diskutil commands as it wasn't mounted automaticaly and boot on your PC. The rule of thumb is to boot UEFI if it's available:.

How to install Windows 7 on a MacBook Pro using Bootcamp, without CD drive

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