Part 4: Boot Mac from Windows Installation USB. Mac will boot from internal hard drive or SSD in default. To install Windows OS on Mac without Boot Camp, you should let your Mac booting from USB drive to start the installation process. However, this is an easy task. Make sure you disconnect all USB devices except a wired keyboard and the USB. Both of the boot managers available to use can handle the dual-booting process; they can even handle more than two OSes, but the Mac's boot manager won’t recognize the Ubuntu OS without a bit of fiddling, and the GRUB boot manager isn't particularly easy to use.

Windows 10, Microsoft’s latest and probably the “last” operating system, has already been installed in 120 million devices worldwide. If you are among those who haven’t upgraded to Windows 10, I would recommend you to do so. And in case you are planning to dual boot Windows 10 with Windows 7 or earlier version of Windows, I will show you how you can do that.

What is Dual Boot?
Dual boot is the process of installing two or more operating systems side by side. You can choose to load any of these operating systems when your computer is booting.

Why Should I Dual Boot?
Different users have different reasons for dual booting. Some of the reasons can include: A user has the requirement of an older operating system due to compatibility issues, some older programs might not work in newer operating system like Windows 10, testing a new operating system while still having the older and familiar OS installed, or a person is just tech-savvy like me and want to have two or more operating systems for satisfying other purposes.

Mac OS X is an advanced operating system, easy to use and extremely stable when used daily, and sometimes one would prefer to have OSX on PC rather than using Windows 7 or latest Windows 10. Well we have brought something interesting for you – The Guide to Run OSX on Windows which means users can Run Mac OS alongside Windows 7,8,8.1. Mac OS X Lion (version 10.7) is the eighth major release of macOS, Apple's desktop and server operating system for Macintosh computers. A preview of Mac OS X 10.7 Lion was publicly shown at the 'Back to the Mac' Apple Special Event on October 20, 2010. Learn how to dual boot Windows 10 with earlier operating systems such as Windows 7 or Windows 8/8.1 in this step by step guide. Windows 10, Microsoft’s latest and probably the “last” operating system, has already been installed in 120 million devices worldwide.

With Windows 7 support ending on 14th January, 2020, it would be a good idea to dual boot Windows 7 and Windows 10. This will allow you to have the latest, updated Windows while still letting you keep the good old Windows 7.

Can’t I Just Use Operating System Virtualization?
Of course you can, but in that case you won’t be reading this. Virtualization software have higher system requirements and not every computer is capable of running two or more OSes simultaneously in a virtual environment.

Can I dual boot Windows 10 with Windows 8/8.1?
Yes. Follow the same steps as mentioned below to dual boot Windows 10 with Windows 8 or Windows 8.1.

How to Dual Boot Windows 10 with Windows 7?

Follow each of the given steps carefully in order. Pay attention to highlighted text for warnings.

Note: Remember that older version of Windows has to be installed first for dual boot to work with newer version. In simpler words: Windows 7 must be installed first and Windows 10 later. It can’t be the other way around.

Step 1: Taking backup

Backup your entire hard disk to an external source. You should backup the data in case anything goes wrong during/after installation and save yourself from regretting later.

Step 2: Creating a new partition

If your hard drive doesn’t have an extra partition where Windows 10 can be installed, you will need to create a new one. Make sure you have at least two partitions. One partition will be containing your Windows 7 and another one will carry Windows 10. If you already have an extra partition for installation, skip to Step 3.

Step 2.1

Click Start, click run (or simply press Windows key + R on the keyboard) and type diskmgmt.msc. Press enter. This will open the Disk Management window.

Step 2.2

You can see the current partitions here. Now right click on (C:) and click Shrink Volume.

We will need to shrink C: drive to make space for a new drive. Choose the shrink size accordingly. A standard Windows 10 installation will require at least 16GB for 32-bit and 20GB for 64-bit. If you are planning to install other programs, you will need free space accordingly.

We will need to enter shrink size in Megabytes. I will enter 18000 which should give me at least 17.5GB.

You can calculate the required space by multiplying GB with 1024. It will give you the amount in MB. For example, if you want to create a new partition of 30GB, you can calculate 30*1024 in calculator which will give you 30720. So enter 30720 under Enter the amount of space to shrink in MB area.

Click Shrink and wait until the process is finished. This will give you unallocated space of the amount you entered.

Step 2.3: Creating a new volume

We will now create a new volume and label it. Right click on unallocated space and click Create New Volume. Enter volume label such as Win10 to identify this volume during installation.

Step 3: Creating bootable media

Okay, now we have a separate partition. Now we will create a bootable media for Windows 10 installation. If you already have a Windows 10 installation media like a DVD or USB, you can skip this step.

Step 3.1: Download Windows 10 ISO

To create a bootable media, you will need a Windows 10 ISO file. You can download the latest Windows 10 ISO file from Microsoft Techbench.

Once on the Techbench software downloads page, scroll down and select the edition you would like to download. Click Confirm. After this, select language, for example, English, and click Confirm.

Now select whether you wish to download 32-bit or 64-bit edition. If you have 4GB or more RAM, 64-bit OS is recommended. Once the download is finished, you can continue creating an installation media.

Step 3.2: Creating a bootable USB

Download Rufus which will help us create a Windows 10 installation USB.

Launch Rufus and:

• Select your USB drive under Device.
• Select MBR Partitioning for BIOS or UEFI if you have non-UEFI drive. Newer devices usually have UEFI type firmware. In that case, select GPT partition scheme for UEFI to utilize native EFI mode.
• Choose FAT32 as the file system. Do not select NTFS.
• Select Create a bootable disk using option and change value to ISO Image.
• Browse to Windows 10 ISO file you downloaded and select it.
• Click Start.
• Close Rufus once the process is complete.

Step 4: Installing Windows 10 in the dual boot environment

Now we will install Windows 10 from the USB disk we created. If you skipped the previous step, you can continue with your Windows 10 installation media.

• Reboot your machine. Change BIOS settings to boot from USB drive first if not already done.
• Windows 10 logo should appear and stay for a certain amount of time. After which you should see the setup screen.
• Select basic options such as time and currency and click next. Click Install Now.
• Accept End User Agreement, click Next.
• Select Custom Install Windows only (Advanced) option.
• Now select the partition you created in step 2. It should display the volume label if and as you entered. If you did not, then it will display as Unallocated Space. Click Next.
• Windows 10 setup will now begin. Once the setup is finished, you should see the Choose an operating system screen each time your device boots. You can select either Windows 10 or Windows 7 to continue booting it.

That’s all, folks. You were reading How to Dual Boot Windows 10 with Windows 7 on techstuffer.com. If you found this article useful, please share it with others.

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A dual boot Windows PC containing Windows 10 and macOS is not that hard to create. Fondly called a Hackintosh, such a setup allows you to enjoy the best of both operating systems on a single computer, hence the phrase dual boot. One of the biggest reasons that people want to create Hackintoshes is that they have the freedom to choose from two different desktop app sources. On a dual boot, you can enjoy popular Windows applications from the Microsoft Store as well as the best nuggets from the Mac App Store - all on a single computer.

The easiest way to do this is to get a Windows 10 PC and then partition the drive so you can install macOS on that partition. Each OS requires its own partition or its own drive. In this article, we'll show you how to create a partition and install the Mac operating system alongside the existing copy of Windows 10 on your PC.

Currently this tutorial is applied to macOS Mojave and High Serria, Mac OS X Serria, EI Capitan and Yosemite

Preparations before Making a Dual Bootable (Win 10 & macOS) PC

There are a few things to keep in mind at this point. First, you don't need a secondary drive to do this. The shared drive method of dual booting will work just fine as long as you have enough space on the disk for an additional partition for your copy of macOS.

The second requirement is that the disk needS to be already partitioned as GUID Partition Table, or GPT. Otherwise, you will need to first delete Windows, install macOS after formatting the disk, and then install Windows 10 at the end. The reason Windows 10 comes last is that certain errors might occur if you try installing Windows first.

P.S if the current OS is not Windows 10, then you have to create a bootable Windows 10 USB and install it on the computer first.

Third, you will need to create a macOS USB installer before attempting the dual boot. You can do this on a Mac by getting the installation files via the App Store and then burning the DMG file inside to a USB drive using Disk Utility app.

Dual Boot Windows 10 and Mac OS on PC without Erasing Windows

To start off, you will need a disk partition utility to help you allocate the required space. A free tool like MiniTool Partition Wizard Free Edition is more than adequate. Once you have the software, follow the steps shown below.

Step 1: Launch MiniTool Partition Wizard and look for the EFI system partition. If not EFI partion found, then create a new partition with GPT.

Step 2: If the EFI partition is less than 200MB, you will need to expand it by taking space from the partition before or after it. This is usually the case when the disk is formatted for Windows, which only allocates 100MB for the EFI partition. You can right-click on the partition to resize it.

Step 3: Now right-click on the new partition and select Split to create a new partition for the macOS installation. The size can be specified on this page. Click OK to apply the changes.

Step 4: The next step is to format this partition. To do this, right-click on the macOS partition and select Format. Set the file system to FAT32 and confirm by clicking OK.

Step 5: You will now need to boot your PC from the macOS USB installer. In Windows, you can do this by hitting the F2 during the startup process. This takes you to the BIOS Setup Utility, where you can change the boot priority so the computer boots from your macOS USB installer instead of the existing Windows files. Once the PC boots up from the installer, open Disk Utility from Applications >Utilities. Select the partition inside Disk Utility and hit Erase. Set the format to APFS (macOS High Serria and Mojave) or Mac OS Extended (journaled) for OS X 10.12 and below. After that, click the Erase button to start the partition process.

Step 6: The next thing is to merge the EFI folders from Windows EFI boot drive and the USB installer, and for this, you can use an EFI mounter like Clover Configurator. The purpose of this step is so that your macOS can boot from the partition instead of from the USB installer.

Mac Os X Dual Boot Windows 10 Iso

Step 7: Restart Windows 10 PC and boot from macOS install USB. Follow the prompt to start the macOS installation process.

Step 8: There's still one more step required to make sure the dual-booting works, and that is to modify one single file so that both partitions are visible as boot sources. This is important because, otherwise, you will have to boot to macOS from the installer each time, which is a complex and unnecessary task. The steps in the image below show you how it's done:

Step 9 : The final step, which is optional, will make your computer boot into Clover instead of Windows. This allows you to choose which OS to boot into, and it's a very convenient thing to set up. You can also do this when your drive name fails to show up despite following Step 6. See the steps shown in the image below.

The process is now complete. When you restart your PC, you will see two boot options in the Clover interface - one for Windows and one for macOS. Select the OS you want to work on and resume the boot process. You will need to restart to access the other OS, which is a minor inconvenience, but that's a trade-off you're going to have to be willing to make if you want a dual boot computer with both Windows 10 and macOS.

Another way is to use separate drives so each OS has its own drive and own EFI system partition. This can be done when your original Windows drive is not formatted for GPT. If it is, then you can follow the steps described in this article to do a dual-boot on a shared drive.

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