• How to check registry for Windows 10/11 22H2 compatibility

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    ..While it may sometimes be necessary to run these products, for instance on machines that limit Telemetry or have not been updated in a while, checking the Registry is all that is required on most Windows machines.

    Here is how this works:

    Open the Windows Registry Editor on the PC. You may do so by opening start, typing regedit.exe and selecting the Registry Editor result from the listing. Using Windows-R to launch it from the run box is also an option.
    Paste the following path into the address bar at the top: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators\
    Open NI22H2 to check the compatibility of Windows 11 version 22H2. Future versions of Windows 11 will use different keys, e.g. NI23H2 for the 2023 feature update.
    Find RedReason on the page and check it:
    If its value is NONE, there are no compatibility issues that prevent the upgrade to Windows 11 version 22H2.
    Any other value hints at compatibility issues. You may get multiple values listed, e.g., “TPM UEFISecureBoot”, to indicate multiple compatibility issues.
    The String SystemDriveTooFull hints at another potential issue. A value of 0 indicates that there is enough storage space available for the upgrade. If you get 1, storage space is not sufficient…

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