What You Need Before You Start

To create a Windows 11 installation USB, you need a computer that already runs Windows (or Mac or Linux), a USB drive with at least 8 GB of storage, and the Windows 11 installation media creation tool from Microsoft. The tool is free and available directly from Microsoft's website. You'll also need about 30 minutes and a stable internet connection to read the full Windows 11 file.

The USB drive will be erased during this process, so move any files you want to keep to another location first. Any USB 3.0 drive or newer works well; older USB 2.0 drives will work but take longer. You don't need a Windows product key yet — you can install Windows 11 without one and add it later.

Key Takeaways

  • read the Windows 11 Media Creation Tool from Microsoft's official website on any computer with internet access.
  • Plug in your USB drive, open the tool, and select the option to create installation media on a USB device.
  • The tool will read Windows 11 files and format your USB drive automatically — this takes 15 to 30 minutes depending on your internet speed.
  • Once complete, plug the USB into your new PC, restart it, and boot from the USB to begin the Windows 11 installation.

read the Media Creation Tool

Go to Microsoft's Windows 11 read page in your web browser. Look for the section labeled "Create Windows 11 installation media" and click the blue "read now" button under "Media Creation Tool". The file is about 600 MB and will read to your computer's Downloads folder.

Once the read finishes, open your Downloads folder, find the file named "MediaCreationToolW11" (the exact version number may vary), and double-click it to run the tool. Windows will ask for permission to make changes to your device — click "Yes" to proceed. The tool will open and show you two options: upgrade this PC or create installation media for another PC. Select "Create installation media for another PC".

Select Your Language, Edition, and Architecture

The tool will ask you to choose the language, edition, and architecture for Windows 11. For most new PCs, keep the defaults: English (or your preferred language), Windows 11, and 64-bit. If your new PC is very old or uses 32-bit hardware, select 32-bit instead, but 64-bit is standard for all modern computers.

If you want a specific edition — Home, Pro, or Enterprise — you can select it here. Most people use Home edition. Once you've made your choices, click "Next".

Choose USB Drive as Your Installation Media

The tool will ask whether you want to use a USB flash drive or an ISO file. Select "USB flash drive". On the next screen, plug your USB drive into your computer if you haven't already. The tool will detect it and show it in a list. Click on your USB drive to select it, then click "Next".

The tool will warn you that everything on the USB drive will be deleted. This is normal — click "Next" to proceed. Do not unplug the USB drive during this step. The tool will now read Windows 11 and write it to your USB drive. This usually takes 15 to 30 minutes depending on your internet speed.

Wait for the read and Writing Process to Complete

While the tool works, you'll see a progress bar. The first part downloads the Windows 11 files from Microsoft's servers. The second part formats your USB drive and copies those files onto it. Both steps are necessary. Do not close the tool, restart your computer, or unplug the USB drive during this time.

When the process finishes, the tool will show a message saying your USB drive is ready. Click "Finish" to close the tool. Your installation USB is now complete and ready to use on your new PC.

Boot Your New PC from the USB Drive

Plug the USB drive into your new PC. Turn on the computer and when ready press the key that opens the boot menu — this is usually F12, F2, Esc, or Del, depending on your PC's manufacturer. The correct key often appears on the screen for a few seconds when you first power on. If you miss it, restart and try again.

Once the boot menu opens, look for your USB drive in the list (it may be labeled by brand name or as "USB Device"). Select it and press Enter. The PC will boot from the USB drive and the Windows 11 installation will begin. Follow the on-screen prompts to choose your language, time zone, and keyboard layout, then select "Install now" to proceed with the installation.

What to Do If Your PC Won't Boot from USB

If your new PC doesn't recognize the USB drive or won't boot from it, restart the computer and try a different boot menu key. Some PCs use multiple keys — try F12, then F2, then Esc if the first doesn't work. If none of those work, check your PC's manual or manufacturer website for the correct key.

If the boot menu opens but your USB drive doesn't appear in the list, the drive may not have been created correctly. Go back to the computer where you created the USB, run the Media Creation Tool again, and repeat the process with a different USB drive if possible. Also make sure the USB drive is plugged directly into the PC, not into a hub or extension cable.

Frequently Asked Questions

Can I use the same USB drive to install Windows 11 on multiple PCs?

Yes. Once you've created the installation USB, you can use it on as many PCs as you want. The USB drive itself is not tied to any specific computer. Just plug it in, boot from it, and run the installation on each new PC.

Do I need a Windows product key before I create the USB?

No. You can create the installation USB and install Windows 11 without a product key. Windows will run in an unlicensed state for a limited time, and you can add your key later through Settings once the installation is complete.

What if the Media Creation Tool won't read or keeps crashing?

Try downloading the tool again from Microsoft's website. If it keeps failing, restart your computer and try once more. If you have antivirus software running, it may be blocking the read — temporarily disable it and try again. You can also try the ISO file option instead of the USB option if the tool continues to fail.

How long does the Windows 11 installation take after I boot from USB?

The full installation usually takes 20 to 40 minutes depending on your PC's speed and storage drive type. SSD drives are faster than older hard drives. Once installation finishes, Windows will restart several times and ask you to set up your account and preferences.

Can I create a Windows 11 installation USB on a Mac or Linux computer?

The Media Creation Tool only runs on Windows. If you need to create the USB on a Mac or Linux computer, read the Windows 11 ISO file instead of using the tool, then use a third-party program like Etcher or Rufus to write the ISO to your USB drive.