How to Download the Windows 11 ISO Safely in 2026

Whether you are performing a clean installation, repairing a broken system or creating a bootable USB drive for multiple PCs, downloading the official Windows 11 ISO directly from Microsoft remains the safest approach. This updated 2026 guide walks you through the download process, explains system requirements, shows you how to create bootable media and covers activation with a genuine licence key. Follow each step in order and you will avoid the malware-laden copies floating around third-party download sites.

Where to Download the Windows 11 ISO

  1. Visit the official Microsoft Software Download page for Windows 11.
  2. Scroll to Download Windows 11 Disk Image (ISO) for x64 devices, select Windows 11 (multi-edition) and click Download.
  3. Choose your preferred language and confirm. A 64-bit download link (valid for 24 hours) will be generated, typically around 5.5 GB in size.

Always verify you are on a microsoft.com domain before clicking download. Counterfeit ISO files distributed on torrents and forums frequently contain rootkits, miners or ransomware. For a parallel walk-through, our sister article on downloading genuine Windows 11 covers additional safety checks.

Windows 11 ISO download page on Microsoft's website

Windows 11 Pro vs Home: Which Edition to Install

The multi-edition ISO contains both Home and Pro images. During setup, Windows selects the edition that matches your licence key. Pro adds BitLocker drive encryption, Remote Desktop hosting, Hyper-V virtualisation and Group Policy support, which makes it the obvious choice for professionals, power users and small businesses. Home is sufficient for everyday personal use. For a side-by-side comparison, read Windows 11 Pro vs Home.

System Requirements

  • 1 GHz or faster, 2-core 64-bit processor (8th-gen Intel or Ryzen 2000 and newer)
  • 4 GB RAM minimum, 8 GB recommended
  • 64 GB storage or more
  • TPM 2.0 chip and UEFI firmware with Secure Boot enabled
  • DirectX 12 compatible graphics with a WDDM 2.0 driver
  • 720p display, 9 inches or larger

Not sure if your PC qualifies? Run Microsoft's free PC Health Check tool for an instant verdict. If it flags TPM as missing, the chip is usually present but disabled in BIOS — our TPM guide for Windows 11 explains how to enable it in a couple of minutes.

Creating a Bootable USB Drive

Once the ISO has finished downloading, you have two solid options for writing it to a USB stick (8 GB minimum, ideally USB 3.0 for faster installs):

  • Media Creation Tool — Microsoft's official utility. Download it from the same page, select Create installation media, point it to your USB drive and let it handle the rest.
  • Rufus — a free third-party tool that gives you finer control over partition scheme (GPT for modern UEFI systems, MBR for legacy BIOS) and the ability to bypass TPM/Secure Boot checks on unsupported hardware.

Once your USB is ready, reboot the target PC, enter the boot menu (usually F12, F10 or Esc depending on the manufacturer) and select the USB drive. For a detailed installation walk-through, see our step-by-step guide to installing Windows.

Activating Windows 11 with a Genuine Licence

After installation, Windows will run in an unactivated state with watermarks and limited personalisation options until you enter a valid product key. Navigate to Settings > System > Activation and paste in your 25-character key. Licendi offers genuine Windows 11 Pro licences at highly competitive prices, with instant digital delivery, invoice and lifetime activation support. Browse the full Windows licences catalogue for Home, Pro and Enterprise options.

Upgrading from Windows 10

If you are currently running Windows 10 and prefer an in-place upgrade over a clean install, mount the ISO in File Explorer and run setup.exe. Your files, apps and settings will be preserved, and if you previously held a digital licence tied to your Microsoft account, activation is automatic. Still weighing up whether to make the leap? Our comparison of Windows 10 vs Windows 11 breaks down the performance gains, security improvements and feature differences so you can decide with confidence.

Final Tips Before You Install

Back up important files to an external drive or cloud storage before running any installation, confirm your BitLocker recovery key is saved to your Microsoft account and make sure laptops are plugged in for the duration of the process. Taking ten minutes of preparation now will spare you hours of headaches later.

Best regards,
The Licendi Team