How To Make Dmg File Bootable Usb On Windows 7

Oct 25, 2015  How to Create Mac OS X Bootable USB Pen Drive with Windows 10 / 7. This tutorial is for Mac OS X El Capitan, yosemite, etc. That is based on Mac OS X versions and successfully working on Windows 7 / 8.1 / 10. The Mac OS X image is required in order.

Posted February 28, 2011 by Jimmy S in Apple Mac, Mac OS X Leopard, Mac system administration

Last Updated on

This recipe will explain how to make a USB Thumb Drive bootable with the OS X Lion Developer Preview installer on it and in turn allow you to install Lion on a Mac without an optical drive (ie Macbook Air line). We will need a copy of the installer dmg (not provided) and a 4GB USB Thumbdrive or Memorycard Reader w/memory card and a Mac to convert the dmg to a bootable usb thumb drive.

Requirements:

  • – OS X Lion installation DMG (hint: file named: mac_os_x_10_7_11a390.dmg)
  • – Mac running OS X Leopard or Snow Leopard
  • – USB Thumbdrive or Memorycard Reader w/memory card (4GB mininum, data will be destroyed).

This guide lets you restore the .dmg installer file for OS X Lion onto a usb thumbdrive. We can then boot the USB Drive on our Mac to install OS X Lion from it. This is very handy for us Macbook Air users that do not have an external optical drive.

Guide:

1. On your Mac, open up Disk Utility. Click on the USB Drive on the left.

2. On the right pane, go to the Restore tab.

3. Click on the Browse button and locate the .dmg installer for OS X Lion. (ie mac_os_x_10_7_11a390.dmg)

4. Once you have it chosen, click and drag your USB Thumbdrive from the left pane to the Destination box. (ie THUMBDRIVE in the screenshot) and then click Restore

I recommend erasing the destination, so be sure to backup any data on the thumbdrive prior to this step! This will take a few minutes to do. Once its finished, you now have a bootable OS X Lion install thumbdrive (basically just like what the Macbook Air ships with).

5. Hold Option/Alt after your see the Apple logo appear and boot with the thumbdrive in your Mac.

Choose the USB Drive to install OS X Lion from your USB Thumbdrive!

  • – I would recommend creating a separate partition for your OS X Lion installation as well.

NOTES:

Free

– I have confirmed this working on a Macbook Air 11″, 2010, 1.6Ghz version.

About Jimmy S

Jimmy Selix is an early adopter that loves to be one of the first on the block to have the latest and greatest in technology and gadgets. Another love of his is being able to share his knowledge to others seeking it. Feel free to drop any comments or questions that you may have.
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This tutorial will help you with the installation of Windows from image (.iso and .img) file using USB Drive.

It is step by step method with pictures and screenshots. Without any CD/DVD. All you need is a USB flash drive of at least 4GB for Win 7 and 8GB for Windows 8 or 10.

This article is a detailed 100% Working Guide. It covers these topics:

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⇒ How to Create Windows 7 Bootable USB Drive
⇒ How to Install Windows 7 from ISO File
⇒ Windows 7 USB Installation Guide
⇒ Install Windows 7 on USB

When you download Windows from Microsoft Store or any online source, you download it as an ISO file. An ISO file combines all the Windows installation files into a single uncompressed file – like a DVD clone or backup. With ISO file so you can create (burn) a bootable DVD or USB drive containing Windows installation files.

This allows you to install new Windows OS onto your PC. If you change the boot order of drives in your PC’s BIOS, you can run the Windows installation directly from your DVD or USB drive when you first turn on your computer. You can search for information about how to change the boot order of drives in your PC BIOS.

Windows 7 USB Installation Guide

You need Windows image file + ISO to USB burner software + USB flash drive to create Windows 7 USB Install Disk.

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Download Windows 7 Ultimate ISO File

If you don’t already have windows 7 image then you can get the ISO file from Windows 7 downloadpage. The most popular edition is Windows 7 Ultimate ISO. Choose 32bit or 64bit version.

Download and Install Windows 7 USB/DVD tool

This is Microsoft’s genuine tool to make USB drive bootable. It can be downloaded here.

To install the Windows USB/DVD Tool, you must be an administrator on the computer on which you are installing the tool.

For 32bit Windows Users
Users who are running 32bit Windows need “bootsect” file to burn (copy) 64bit ISO file on USB drive successfully.

bootsect.exe must be present in the same folder as the .iso file. It can be downloaded here.

Create Windows 7 Bootable USB Drive From ISO File

After you have downloaded above Windows 7 USB tool. Now Make a USB copy of your Windows ISO file, using this Tool.

Creating bootable windows 7 usbHow to make dmg file bootable usb on windows 7 free

Step 1 – Open this tool from your programs. e.g Start ⇒ All Programs. Click on Browse button and go to the path where your windows iso file is located. Select Windows 7 ISO file and click Open.

Free Windows 7 Bootable Usb

Choose ISO File

Create Windows 7 Bootable Usb

Step 2 – Click on USB Device as media type you would like to use to create Windows 7 bootable USB drive.

Choose media type usb or dvd

Step 3 – From Drop Down box select your USB Pen drive letter, e.g., H: or I: or G: and then click Begin copying. After the process is completed the USB is now bootable. Turn off your computer and plug in USB. Now Turn on PC and boot from USB. Done.

When your Windows ISO file is copied, install Windows by moving to the root folder of your USB drive, and then double-click Setup.exe.

New Method 100% Working & Tested

Install the Rufus Software and Open it. It can be downloaded here.
After you open it. Follow Below Steps:

How To Make Dmg File Bootable Usb On Windows 7 10

  • Plug in your Pen Drive into USB Flash Port.
  • To make a Windows bootdisk (Windows XP/7) select NTFS as file system from the drop down.
  • Then click on the buttons that looks like a DVD drive, that one near to the checkbox that says “Create bootable disk using:”
  • Choose the XP ISO file.
  • Click Start, Done!