Switching your computer’s boot drive to a different drive for Windows 10 startup might sound like a big deal, but it is actually a straightforward process once you know where to look. Essentially, you will be diving into your computer’s basic settings, often called the BIOS or UEFI firmware, right as it turns on. There, you will find the “boot order” options, and you can simply tell your PC, “Hey, start from this other drive first.” This involves restarting your computer, pressing a special key to enter those settings, navigating a few menus, selecting your preferred new boot drive, saving your changes, and then letting your computer restart normally. Just make sure your new drive already has Windows 10 installed, or your computer will be very confused!
Tutorial – How to Change Boot Drive Windows 10
Alright, let’s get down to business. We are going to walk through the exact steps to tell your computer which drive to look at first when it starts up, effectively changing your boot drive. This isn’t rocket science, but it does require a little careful navigation within your computer’s fundamental settings.
Step 1: Prepare your new boot drive.
Before you do anything else, make absolutely certain that the drive you want to boot from actually has Windows 10 installed on it and is properly connected to your computer.
Think of it like this, you would not tell your car to drive off if it did not have an engine, right? If your target drive is blank, your computer will have nothing to load, and you will just get an error message. You might need to install Windows 10 fresh on it, or perhaps you have cloned your existing Windows installation onto a new, faster Solid State Drive (SSD), which is a very popular upgrade these days.
Step 2: Restart your computer and access BIOS or UEFI.
As your computer restarts, repeatedly press the key that lets you enter your system’s BIOS or UEFI settings.
This part can feel a bit like a secret handshake, since the key can vary depending on who made your computer. Common keys include Delete, F2, F10, F12, or Escape. Watch closely during the very first moments your computer powers on, you might see a quick message like “Press DEL to enter Setup” or “Press F2 for BIOS.” You need to be quick, so start tapping that key as soon as you hit restart.
Step 3: Navigate to the Boot Options or Boot Order menu.
Once you are in the BIOS or UEFI, use your keyboard, often the arrow keys, to find a menu usually labelled something like “Boot,” “Boot Options,” “Boot Priority,” or “Startup.”
The look of these menus can vary wildly; some are old-school text-based screens, while others are more modern with mouse support. Do not be intimidated, just look for words that sound like “boot” or “startup.” This is where your computer decides the order in which it checks drives for an operating system.
Step 4: Change the boot priority to your desired drive.
In the boot order menu, move your new preferred boot drive to the top of the list.
You will typically use the + and – keys, or sometimes F5 and F6, to move items up and down the list. If you have a graphical UEFI interface, you might even be able to drag and drop with your mouse. The goal here is to ensure your computer checks your chosen Windows 10 drive before it looks at any other drives.
Step 5: Save your changes and exit.
After you have set your new boot drive as the top of the list, save your changes and then exit the BIOS or UEFI settings.
This is a critical step; think of it as clicking “Save” on a document. If you do not save, all your hard work will be for nothing! Look for an option like “Save and Exit,” which is often mapped to F10. Your computer will then restart, hopefully now booting from your newly selected drive.
After you complete these steps, your computer will automatically restart. This time, instead of looking at the old boot drive, it will focus on the drive you specified in the BIOS or UEFI settings. If Windows 10 is correctly installed and configured on that new drive, your system should boot up smoothly, just like always, but now running from its new home. It is a seamless transition, provided all the pieces are in place.
Tips for Changing Boot Drive Windows 10
- Always back up your important data before making significant changes to your system, just in case something unexpected happens.
- Make sure you know the specific key to access your motherboard’s BIOS or UEFI, as it can vary by computer brand and model.
- Ensure that Windows 10 is fully installed and functional on the new drive you intend to boot from; otherwise, your computer will not know what to do.
- If you are having trouble booting from the new drive, try temporarily disconnecting the old boot drive to force the system to only see the new one.
- Consider using a disk-cloning tool if you are upgrading to a new drive, as it can transfer your entire Windows installation without requiring a fresh install.
- Check your BIOS or UEFI settings for “Legacy” or “UEFI” boot modes, and ensure they match the mode Windows 10 was installed in on your new drive.
- If your new drive is an NVMe SSD, you might need to enable specific NVMe boot support in your BIOS or UEFI settings, as some older systems do not recognize them by default.
Why would I want to change my boot drive?
There are several good reasons why you might want to switch your boot drive. The most common is to upgrade to a faster Solid State Drive, or SSD, from an older Hard Disk Drive, or HDD, which dramatically speeds up your computer. You might also want to install a fresh copy of Windows 10 on a new drive, or set up a dual-boot system that lets you choose between two operating systems when you start your PC.
What if my computer will not boot after changing the drive?
Do not panic, this happens sometimes! First, go back into your BIOS or UEFI settings, as before, and double-check the boot order to ensure your desired drive is still at the top. Also, confirm that the drive itself is properly connected and that Windows 10 is definitely installed on it. If all else fails, you can usually put your old boot drive back to get your system running again while you troubleshoot.
Do I need to reinstall Windows 10 on the new drive?
If your new drive is completely blank, then yes, you will need to install Windows 10 on it before you can boot from it. However, many people opt to “clone” their existing Windows installation from their old drive to the new one. This process copies everything, including your operating system, programs, and files, making the new drive an exact replica of the old one, but often much faster.
Can I change it back if I make a mistake?
Absolutely! The beauty of this process is that it is fully reversible. If you change your boot drive and decide you want to go back to the old one, or if you made a mistake and picked the wrong drive, you can simply restart your computer, go back into the BIOS or UEFI settings, and adjust the boot order again to your original drive. It is a very flexible setting.
What is the difference between BIOS and UEFI?
BIOS, which stands for Basic Input/Output System, is the older, more traditional firmware interface that computers use to start up. UEFI, or Unified Extensible Firmware Interface, is its newer, more modern replacement. UEFI offers several advantages, including faster boot times, support for larger hard drives, better security features, and often a more user-friendly graphical interface that you can navigate with a mouse. Most modern computers use UEFI.
Summary of Steps
- Prepare new boot drive with Windows 10.
- Restart computer, access BIOS or UEFI.
- Navigate to Boot Options.
- Change boot priority to desired drive.
- Save changes and exit.
Conclusion
Taking control of your computer’s boot sequence, especially knowing how to change the boot drive in Windows 10, is a fundamental skill that can open up a world of possibilities for your PC. Whether you are looking to squeeze every last drop of performance out of your machine by upgrading to a blazing-fast SSD or simply trying to install a fresh copy of your operating system, mastering this process puts you firmly in the driver’s seat. It might seem a little intimidating at first, poking around in your computer’s “brain,” but as you have seen, it is a logical series of steps that anyone can follow with a bit of patience.
Think of your computer’s boot drive as the starting line for your digital race. By choosing a faster drive, you are not just making your computer start up quicker; you are improving everything from application loading to opening large files. It is like upgrading from a dusty, gravelly path to a smooth, high-speed highway. The whole experience just feels snappier and more responsive. And what is not to love about that?
Remember, the key to success here lies in preparation, knowing your specific computer’s BIOS or UEFI access key, and carefully following the steps. Do not rush, and always double-check your selections before saving. And hey, if something does not go exactly as planned, you now know how to get back into those settings and try again, or revert to your previous setup. It is a powerful piece of knowledge that gives you greater control over your hardware. So, go ahead, unlock your PC’s full potential, and enjoy the faster, smoother, and more efficient computing experience that awaits you!

Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read over 50 million times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.
Read his full bio here.
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