How to Create a Windows 10 Installation USB Stick

This guide walks you through creating a bootable USB stick that can install or repair Windows 10 on any compatible PC. You’ll need a USB drive (8 GB or larger) and a Windows PC to prepare it. The process takes about 15–30 minutes, depending on your internet speed.

What You’ll Need

A USB flash drive with at least 8 GB of space (16 GB is safer). All data on it will be erased.
A Windows PC with internet access to download the Media Creation Tool.
A stable internet connection (the Windows 10 ISO is about 5 GB).
Your Windows 10 product key (if you’re doing a clean install and haven’t already activated this PC).

Step-by-Step

Insert the USB drive into a USB port on your Windows PC. Make sure it’s empty or that you’ve backed up anything important—everything on it will be wiped.
Download the Media Creation Tool from Microsoft’s official website. Go to microsoft.com/software-download/windows10 and click “Download tool now.” Save the file to your desktop.
Run the tool. Right-click the downloaded file and select “Run as administrator.” Accept the license terms when prompted.
Choose “Create installation media” (for another PC) and click Next. This option lets you make a bootable USB or ISO file.
Select language, edition, and architecture. If you’re not sure, uncheck “Use the recommended options for this PC” and pick the same language as your current Windows. For architecture, choose “64-bit (x64)” unless you know you need 32-bit. Click Next.
Choose “USB flash drive” and click Next. The tool will list available drives—select your USB drive. If it’s not listed, try reinserting it or use a different port.
Wait for the download and creation to finish. The tool downloads the Windows 10 installation files and writes them to your USB. This can take 10–20 minutes. Don’t unplug the drive or close the tool until it says “Your USB flash drive is ready.”
Click Finish and safely eject the USB drive. It’s now bootable and ready to use.

Common Mistakes

Using a drive that’s too small—the Windows 10 installation files exceed 4 GB, so an 8 GB drive is the bare minimum. A 4 GB drive will fail.
Not backing up the USB drive—all existing data is erased during the process.
Choosing the wrong architecture—installing 32-bit Windows on a 64-bit PC works but limits RAM usage; installing 64-bit on a 32-bit PC won’t work at all.
Unplugging the USB during the process—this corrupts the drive and you’ll have to start over.
Using a USB 2.0 port—it works but is much slower. Use a USB 3.0 port (blue) if available.

Tips

Label your USB drive after creation (e.g., “Win10 Install”) so you don’t accidentally format it later.
Keep the USB drive for repairs—you can use it to boot into Recovery Environment and fix startup problems on any Windows 10 PC.
If you’re creating the USB on a Mac, the Media Creation Tool won’t run. Use Boot Camp Assistant or a third-party tool like Rufus on a Windows PC.
For a clean install, you can delete all partitions during setup—the USB will handle it. But back up your files first.
If you need to reinstall Windows frequently, consider downloading the ISO instead (choose “ISO file” in step 6) and burn it to a DVD or use it later.

Troubleshooting

USB drive not detected in the tool: Try a different USB port, especially one directly on the motherboard (not a front panel). If it still doesn’t show, format the drive as NTFS in File Explorer, then try again.

Download fails or is slow: Pause other downloads, try a wired Ethernet connection, or run the tool again later. You can also download the ISO directly from the same page and use a tool like Rufus to write it to USB.

PC won’t boot from the USB: Restart the PC and press the boot menu key (often F12, F10, or Esc) to select the USB drive manually. If it still doesn’t boot, check the BIOS/UEFI settings: enable “USB Boot” and disable “Secure Boot” temporarily (you can re-enable it after installation).

Error “We couldn’t create a new partition” during install: This usually means the disk has an existing partition layout. During setup, press Shift+F10 to open Command Prompt, type diskpart, then list disk, select your disk, and run clean to wipe it. Be careful—this erases all data on that disk.

USB drive becomes read-only or corrupted: Re-run the Media Creation Tool on a different USB port. If it fails, format the drive using Disk Management (right-click Start → Disk Management) and try again.

Frequently Asked Questions

Can I use a USB 2.0 drive? Yes, but installation will be slower. A USB 3.0 drive is recommended for faster setup.

Will this erase my current Windows installation? No—creating the USB doesn’t affect your PC. Only when you boot from the USB and choose “Install now” will it modify your hard drive.

Do I need a product key to create the USB? No, you can create the USB without a key. You’ll need a key only when installing Windows, and you can skip it if you’re just repairing or reinstalling on a PC that was already activated.

Can I use the same USB to install on multiple PCs? Yes, the USB is reusable. You can install Windows on as many PCs as you have licenses for.

What if my PC doesn’t support UEFI? The Media Creation Tool creates a USB that works with both UEFI and legacy BIOS, so it should boot on most PCs from the last decade.

How do I boot from the USB? Restart your PC, press the boot menu key (F12, F10, or Esc, depending on the manufacturer), and select the USB drive. If that doesn’t work, enter BIOS/UEFI and change the boot order.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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