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MateoJohnson's avatar
MateoJohnson
Copper Contributor
Oct 16, 2025

How can I upgrade Windows 10 to 11 without losing data and programs on unsupported cpu?

Hey folks, I’m running Windows 10 Pro (22H2) on my old Dell XPS 9570, and apparently my CPU isn’t "officially supported" for Windows 11. The Upgrade Assistant keeps blocking me even though the lapto...
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JaxonRyder's avatar
JaxonRyder
Iron Contributor
Oct 16, 2025

Microsoft has actively patched many of the well-known bypass methods through Windows Update. Please don't waste time on the following tricks if you really want to upgrade Windows 10 to 11 without data loss.

The Manual Registry Edit Method: The specific registry key (AllowUpgradesWithUnsupportedTPMOrCPU) that used to work during an in-place upgrade is now often detected and blocked by the updated Windows Setup routine.

The appraiserres.dll Swap Method: This was a popular early method where you would replace a file in the Windows 11 ISO with one from a Windows 10 ISO. The updated Windows Setup now checks for this modification and will fail the installation if it detects the tampered file.

Automated Scripts & Tools: Any tool that relies on these two core methods (like some older versions of Flyby11 or other scripts) will also fail if they haven't been updated to use newer, more complex bypasses.

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