How to install Windows 10 Pro down from Windows 11 Pro with no previous Windows 10 on computer?

Hi Heather-Lou Rendulich ,

To move from Windows 11 to Windows 10 could be accomplished if one of these were available:

a) A backup image had been made with third party software when Windows 10 was in use

b) The computer manufacturer Dell, HP, or Lenovo has a factory reset download from the cloud

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If neither a nor b are available, then a clean install is required.

https://www.tenforums.com/tutorials/1950-clean-install-windows-10-a.html

https://www.tenforums.com/tutorials/9230-download-windows-10-iso-file.html

https://www.microsoft.com/en-us/software-download/windows10?msockid=15ca77c26bb2638a118d621e6a4962d1

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Docs

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Please remember to vote and mark the replies as answers if they help.

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Hello,

You would need to do a clean install in this case.

To perform a clean installation of Windows 10 using the Windows Media Creation Tool. You do need to get access to another computer so you can download the Windows installation files into a flash drive, then use the flash drive to help your computer. Hopefully you have a spare computer, or you can have friend or family help you.

The following steps should be done on a working Windows computer:

Download the Windows Media Creation Tool from Microsoft's official website. https://www.microsoft.com/software-download/windows10

Run the tool and select "Create installation media for another PC."

Choose your language, edition, and architecture (32 or 64-bit) and select "Next."

Choose "USB flash drive" as the media to use for the installation and select "Next."

Connect a USB flash drive with at least 8 GB of free space to your computer.

Select the USB flash drive you want to use, and then select "Next."

The tool will then download the required files and create the installation media.

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Now these steps will  be done on your problematic computer:

Go to the computer's BIOS boot menu to have it boot from the USB drive.

Follow the on-screen instructions to install Windows 10, making sure to choose "Custom install" and select the option to delete all existing partitions.

Once the installation is complete, you'll have a clean installation of Windows 10 on your computer.