Microsoft Blocks Windows 11 Upgrades for PCs With Certain Apps Installed
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Microsoft blocks Windows 11 upgrades if certain unauthorized apps like StartAllBack or Solidworks PDM are installed. The full list contains over a dozen apps.
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Apps are blocked not just by name but by specific version checking. For example, only old VLC Windows 7 versions are disallowed.
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Named blocked apps include ConisioAdmin.exe, EaseUS Disk Copy, ep_dwm.exe, iCloudServices.exe, RadeonSoftware.exe, and StartAllBackCfg.exe.
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There are workarounds like uninstalling the app, upgrading Windows 11, then reinstalling the app with a renamed installer.
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Additional blocked drivers and services relate to AMD, Intel, and Realtek hardware.