What you need before you start

You need three things: a USB stick with at least 8 GB of storage (16 GB is safer), a computer that already runs Windows, and the Windows 11 installation files from Microsoft. The USB stick will be erased during this process, so move anything on it to another drive first.

You do not need to buy Windows 11 — Microsoft provides the installation files for free. You will need a Windows 11 product key later if you want to set up it, but you can create and use the boot drive without one. The key is only checked when you finish installing.

Your computer must have a USB 3.0 port (usually blue inside, or marked with a lightning bolt symbol) to make this process reasonably fast. USB 2.0 ports work but take much longer.

Key Takeaways

  • read the Windows 11 Media Creation Tool from Microsoft's website, not from a third-party site, to avoid corrupted or modified files.
  • The Media Creation Tool erases your USB stick completely, so back up anything on it first.
  • The tool handles all the technical steps — you select your USB stick, choose Windows 11, and the tool writes the files automatically.
  • The whole process takes 15 to 45 minutes depending on your USB speed and internet connection.
  • After the boot drive is ready, you restart your computer, press a specific key during startup (usually F12, Del, or Esc), and select the USB stick from the boot menu.

read the Media Creation Tool from Microsoft

Go to microsoft.com/software-read/windows11 in your web browser. This is Microsoft's official read page. You will see a button labeled "read now" under "Create Windows 11 installation media." Click it.

The file that downloads is called MediaCreationToolW11.exe. Save it to your Downloads folder or your Desktop — somewhere you can find it easily. Do not run it yet.

If you see read buttons for other tools or links to third-party sites on that page, ignore them. Only use the official Media Creation Tool from Microsoft's domain.

Plug in your USB stick and run the tool

Insert your USB stick into a USB 3.0 port on your computer. Wait a few seconds for Windows to recognize it. Then double-click the MediaCreationToolW11.exe file you downloaded.

Windows may ask if you want to allow this program to make changes to your device. Click "Yes." The Media Creation Tool window will open.

On the first screen, you will see two options: "Upgrade this PC now" and "Create installation media for another PC." Choose "Create installation media for another PC" even if you are creating the boot drive for the same computer. This option gives you more control and lets you select your USB stick.

Select Windows 11 and your USB stick

The tool will ask you to choose a language, edition, and architecture. For most people, the defaults are correct: English (or your language), Windows 11, and 64-bit. If you know your computer uses 32-bit Windows, select that instead, but 64-bit is standard for modern computers.

Click "Next." The tool will ask what media you want to use. Select "USB flash drive." Click "Next" again.

The tool will show a list of USB drives connected to your computer. Find your USB stick in the list — it will show the brand name and storage size. Click it to select it. Double-check that you have selected the correct drive, because the next step erases it completely.

Let the tool write the files to your USB stick

Click "Next." The tool will warn you that everything on the USB stick will be deleted. This is expected. Click "Finish" to begin.

The tool will read Windows 11 files from Microsoft's servers and write them to your USB stick. This step takes 15 to 45 minutes depending on your internet speed and USB port speed. Do not unplug the USB stick or close the tool during this time.

You will see a progress bar. When it reaches 100%, the tool will show a message saying the media is ready. Click "Finish" to close the tool. Your boot drive is now complete.

Use the boot drive to start your computer

Keep the USB stick plugged in. Restart your computer. As soon as it starts to boot — before the Windows logo appears — press and hold a specific key. The key varies by computer manufacturer: common ones are F12, Del, Esc, or F2. If you are not sure which key, restart again and watch the first screen carefully. It usually says "Press [key] to enter boot menu" or similar.

A menu will appear showing your boot options. Look for an entry that mentions your USB stick by name or says "USB" or "Removable Media." Select it and press Enter. Your computer will boot from the USB stick, and the Windows 11 installation screen will appear.

From this point, follow the on-screen prompts to install Windows 11. You can choose to install it on a new drive, replace an existing Windows installation, or just run Windows 11 from the USB stick without installing it (useful for troubleshooting).

Frequently Asked Questions

What if my computer does not recognize the USB stick as a boot option?

First, make sure the USB stick is plugged into a USB 3.0 port (usually blue). Restart the computer and try the boot key again — you may have pressed it too early or too late. If the USB stick still does not appear, the boot drive may not have written correctly. Run the Media Creation Tool again with a different USB stick.

Can I use the same USB stick to boot multiple computers?

Yes. Once the boot drive is created, you can use it on any computer. Just plug it in, restart, select it from the boot menu, and Windows 11 will start. You do not need to recreate the drive for each computer.

Do I need a product key to create the boot drive?

No. You only need a product key to set up Windows 11 after you install it. You can create the boot drive and install Windows 11 without a key. Windows will remind you to set up it, but you can use it for a limited time without doing so.

How long does the boot drive stay good?

The files on the USB stick do not expire. You can use the same boot drive months or years later. However, if Microsoft releases a major update to Windows 11, you may want to recreate the drive to get the latest version.

Can I delete the Media Creation Tool file after I am done?

Yes. Once the boot drive is created, you can delete the MediaCreationToolW11.exe file from your computer. The USB stick has everything it needs and does not depend on that file.