How to Install Windows 10 on a Windows 11 Computer: A Step-by-Step Guide

By / September 16, 2025

Windows 11 brought a fresh look and new features, but not everyone is happy with it. Some users prefer the stability, familiar interface, and wider compatibility of Windows 10. If you own a computer that came with Windows 11 but want to switch back, you might be asking: “How do I install Windows 10 on a Windows 11 computer?”

This guide will walk you through the step-by-step process of installing Windows 10 on a Windows 11 machine, whether you’re performing a downgrade, clean install, or dual-boot setup.

🔑 Key Takeaways

  • You can install Windows 10 on a Windows 11 computer via a clean installation using a bootable USB drive.

  • Always back up your files before downgrading, as installation will erase data.

  • You’ll need a Windows 10 ISO file and the Media Creation Tool from Microsoft.

  • Windows 10 and Windows 11 use the same product keys — your Windows 11 license will typically activate Windows 10 automatically.

  • You can also dual-boot Windows 10 and Windows 11 if you want to keep both systems.

Why Install Windows 10 on a Windows 11 Computer?

While Windows 11 is modern and sleek, there are valid reasons users prefer Windows 10:

  • Familiarity – Windows 10 has the classic Start menu and UI.

  • Stability – Many apps and drivers are more stable on Windows 10.

  • Performance – Some older PCs perform better on Windows 10.

  • Compatibility – Older software and hardware may not work with Windows 11.

  • Personal preference – Some simply like Windows 10’s look and feel.

Requirements Before Installing Windows 10

Before you start, make sure you have the following:

✅ Hardware Requirements (Windows 10 Minimum Specs)

  • Processor: 1GHz or faster

  • RAM: 2GB (64-bit: 4GB recommended)

  • Storage: 32GB minimum

  • GPU: DirectX 9 compatible

  • Firmware: UEFI/BIOS

  • Internet connection: Required for updates and activation

✅ Software Requirements

  • A Windows 10 ISO file (from Microsoft’s official site)

  • Rufus or Microsoft’s Media Creation Tool

  • At least an 8GB USB drive

✅ Preparation Steps

  • Back up your personal files.

  • Note down your Windows 11 product key (though in most cases, Windows 10 will auto-activate).

  • Make sure your PC is plugged into power (if using a laptop).

How to Install Windows 10 on a Windows 11 Computer (Step-by-Step)

Now let’s go through the process.

1. Download the Windows 10 ISO File

Steps:

  1. Go to the official Microsoft Windows 10 download page.

  2. Scroll down to Download Windows 10 Disk Image (ISO).

  3. Select Windows 10 (multi-edition ISO).

  4. Choose your language and download the file.

2. Create a Bootable USB Drive

You’ll need a bootable USB to install Windows 10.

Method 1: Using Media Creation Tool

  1. Download the Media Creation Tool from Microsoft.

  2. Run the tool and select Create installation media (USB flash drive).

  3. Choose language, edition, and architecture (64-bit recommended).

  4. Insert a USB drive (8GB+).

  5. Follow instructions to create the bootable USB.

Method 2: Using Rufus

  1. Download Rufus (a free USB boot tool).

  2. Open Rufus and select your USB drive.

  3. Choose the Windows 10 ISO file.

  4. Partition scheme: GPT (for UEFI systems).

  5. Click Start to create the bootable drive.

3. Enter BIOS/UEFI to Boot from USB

Steps:

  1. Restart your computer.

  2. Press the BIOS key (commonly F2, F10, F12, ESC, or DEL) during startup.

  3. In the boot menu, set your USB drive as the first boot option.

  4. Save changes and restart.

4. Install Windows 10

Once your PC boots from the USB, you’ll see the Windows 10 setup screen.

Steps:

  1. Select Language, Time, and Keyboard settings.

  2. Click Install Now.

  3. Enter your product key (or click I don’t have a product key if you’re using digital activation).

  4. Select Windows 10 edition (must match your Windows 11 license).

  5. Accept the license terms.

  6. Choose Custom: Install Windows only (advanced).

  7. Select the partition where Windows 11 is installed (usually the C: drive).

  8. Format the partition and click Next.

  9. Installation will begin (this may take 15–30 minutes).

5. Complete Windows 10 Setup

After installation, your computer will restart several times.

Steps:

  1. Choose your region and keyboard layout.

  2. Connect to Wi-Fi (optional).

  3. Sign in with your Microsoft account or create a local account.

  4. Adjust privacy and security settings.

Now you’ll land on the Windows 10 desktop. 🎉

Alternative: Dual-Boot Windows 10 and Windows 11

If you don’t want to lose Windows 11, you can set up a dual-boot system.

Steps:

  1. Shrink an existing partition in Disk Management to free space.

  2. Create a new partition for Windows 10 (at least 50GB).

  3. Boot from the Windows 10 USB installer.

  4. Choose the new partition during installation.

  5. Once complete, you’ll see a boot menu to choose Windows 10 or Windows 11 at startup.

Troubleshooting Installation Issues

  • PC won’t boot from USB?
    → Recheck BIOS boot order or recreate the bootable USB.

  • Windows 10 won’t activate?
    → Make sure you installed the edition matching your license (Home vs Pro).

  • Drivers missing after install?
    → Go to your PC manufacturer’s website and download Windows 10 drivers.

  • No storage drive detected?
    → Enable AHCI/UEFI mode in BIOS or load drivers during installation.

Comparison: Downgrading vs Dual-Boot

Option Pros Cons
Clean Install Full space for Windows 10, stable Erases Windows 11, data loss risk
Dual-Boot Keep both OS, flexibility Takes more storage, more complex

Conclusion

Now you know exactly how to install Windows 10 on a Windows 11 computer. Whether you choose a clean install for a fresh start or a dual-boot setup to keep both systems, the process is straightforward with the right preparation.

The key is to back up your data, create a bootable USB, and follow the installation steps carefully. Windows 10 remains a reliable operating system, and installing it on your Windows 11 computer gives you more control, compatibility, and comfort.

FAQs: Installing Windows 10 on a Windows 11 Computer

1. Can I directly downgrade from Windows 11 to Windows 10 without reinstalling?
Yes, but only within 10 days of upgrading to Windows 11. After that, you need a clean install.

2. Do I need to buy a new license for Windows 10?
No. If your PC already has a Windows 11 license, it usually activates Windows 10 automatically.

3. Will I lose my data when installing Windows 10?
Yes, if you do a clean install. Always back up important files before starting.

4. Is Windows 10 still supported by Microsoft?
Yes, Microsoft will support Windows 10 until October 14, 2025.

5. Can I reinstall Windows 11 later if I change my mind?
Yes. You can reinstall Windows 11 anytime using Microsoft’s installation media.

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