How To Install Windows 11 From a USB


  • >Check you have enough space
  • >Download the ISO file
  • >Transfer it to a USB
  • >Run Windows 11 from the USB

Windows 11 was officially announced back in June, but it\’s now finally available to download. There are already a handful of new devices with the OS pre-installed, with plenty more on the way soon.

If you have a compatible Windows 10 device, you can install Windows 11 now. The Windows 11 download page is now live, with the Installation Assistant making it easy to get up and running.

That\’s also where you\’ll find the official ISO file. It\’s the easiest way to transfer it to a USB stick or other flash drive and install on as many eligible devices as you like.

Despite it being officially supported by Microsoft, the process is still quite complicated. Here’s what you need to know.

Check you have enough space

Before proceeding, it’s worth making sure you won’t run out of space at any stage. The Windows 11 ISO file is 5.1GB in size, so you’ll need that spare capacity on the device where it’s being downloaded, any flash drives you’re using and the target devices.

If this is proving tricky, the tips in our guide to freeing up space in Windows 10 could be useful. If there are files you don’t need immediately, it’s worth backing them up and then performing a factory reset. You can then choose what you want back on your PC at a later date.

Download the ISO file

Previously, the download process involved signing into a Microsoft account and registering for the Windows Insider Program. It\’s much simpler now:

  1. Head to the official Windows 11 download page
  2. Under \’Create Windows 11 installation media\’, click \’Download Now\’
    Image: Rufus

    Once complete, you now have a USB stick that can be used for a clean installation of Windows 11 on any compatible device.

    1. Plug the USB stick into the target device
    2. Restart the device
    3. Before the Windows logo appears, hold the F8 key to enter Safe Mode
    4. From here, choose ‘Use a device’ and select the USB stick

    Your PC should now boot running the Windows 11 ISO file you downloaded. If not, you may need to turn off Secure Boot in the BIOS settings.

    Related articles for further reading

    • Will my PC run Windows 11?
    • When will my PC get Windows 11?
    • Windows 11 release date, pricing and new features

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