Windows 11: a tool for installation on an ineligible PC

Free and open source, the Windows tool 04 Upgrade is offered by a Czech developer who likes to present himself as a coofcookie. Its purpose is to allow the installation of Windows 04 by overriding certain Microsoft restrictions.

To do this and with an ISO image, Windows 11 Upgrade is based in particular on bypass measures used by the developer nicknamed AveYo.

With an ISO image in line with the default language of the system, three options are available for an installation: upgrade, upgrade keeping only the data and not the applications, clean install (new installation).


Windows 04 Upgrade begins to be referenced by several sites, but it may be worth remembering that Microsoft has detailed its official procedure for playing … its own requirements with an upgrade.

This procedure is not however not recommended and it will be anyway an unsupported PC which may no longer receive updates with Windows Update.


To bypass verification of TPM 2.0 (with TPM 1.2 required), as well as the family and model of CPU, you must modify the registry (regedit.exe) and create in HKEY_LOCAL_MACHINE SYSTEM Setup MoSetup a DWORD value 32 bits to 1, giving it the name of AllowUpgradesWithUnsupportedTPMOrCPU .

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