I have to reinstall Windows 11 using the media creation tool

Question

My PC crashed and I can't get to the recovery partition on reboot (Bit locker error message). Will the Windows 11 media creation tool require a product ID code to reinstall windows and will this work on a windows 10 computer that was upgraded to Windows 11?

Answer 1

The Windows 11 Media Creation Tool itself does not require a product key to create installation media, and in many reinstall scenarios a product key is not needed during setup.

Key points for this scenario:

1. Creating the USB/DVD
   • On a working PC, go to the Windows 11 download page and under Create Windows 11 Installation Media select Download Now to get MediaCreationTool.exe.
   • Run MediaCreationTool.exe and follow the steps to create a bootable USB flash drive or ISO, as described in Create installation media for Windows.
2. Using it to reinstall on the crashed PC
   • Boot the crashed PC from the USB installation media.
   • When Windows 11 Setup starts, choose language and keyboard, then choose Install Windows 11.
   • If a Product key window appears, select I don't have a product key. Setup will then let selection of the Windows edition and continue.
   • If the device has a digital license (for example, it was already activated with Windows 10 or 11), Windows will typically activate automatically after reinstall, using the key stored in firmware or linked to the Microsoft account. This is explicitly supported for reinstalls: “If you’re reinstalling Windows, you might not need a Windows product key.”
3. Will this work on a Windows 10 PC that was upgraded to Windows 11?
   • Yes. Installation media can be used to “install a new copy of Windows, perform a clean installation of Windows, or reinstall Windows.”
   • A PC that was previously upgraded and activated with Windows 11 already has a digital license. Reinstalling Windows 11 on that same hardware using installation media is supported, and activation should occur automatically once online, without entering a product key, as long as the edition matches the existing license.
4. Clean install steps (if choosing to wipe and start fresh)
   • After booting from the USB and choosing Install Windows 11, accept the license terms.
   • Choose Custom install, then in Select location to install Windows 11 delete all partitions on Disk 0 that are not Unallocated Space, until only Disk 0 Unallocated Space remains, then select it and choose Next.
   • Windows will reinstall and restart several times; then complete the out-of-box setup and sign in with the Microsoft account so the stored digital license can be applied.

If the product key is not linked to a Microsoft account and there is no firmware-stored key, a valid key would be required; otherwise, do not proceed with a clean install.

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References:

• Create installation media for Windows
• Reinstall Windows with the installation media
• Find your Windows product key