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  • Fast Startup is what it is (and explained in one of your links) and affects ANY partition with a file system recognized by Windows. It can (and arguably should) be disabled. That said there's NO scenario where you can make a dual-boot with Windows 7 and 11. The former is too old to support the hardware required by the latter.
    – ChanganAuto
    Commented Jul 17, 2023 at 21:30
  • But why? What is the reason to write something to the drive user doesn't use? What info is stored there? Regarding the notice about hardware, let's talk about Windows 10 if you like. It has the same issue with Fast Start, AFAIK.
    – AlexVB
    Commented Jul 17, 2023 at 21:46
  • It doesn't "write", it hibernates, and any accessible drive is read and indexed, period. Windows 7 doesn't support Fast Startup and that is (should be) the obvious problem here. That and the fact that using Windows 7 in 2023 is dumb & dangerous if online. Nothing else to add here, honestly.
    – ChanganAuto
    Commented Jul 17, 2023 at 21:50
  • Pretty much the same question and the answer is as well applicable: Windows 10 vs Windows 7 GPT filesystem incompatibility?
    – ChanganAuto
    Commented Jul 17, 2023 at 21:52
  • 1
    With a decent machine, run Windows 7 as a VM inside Windows 11. I do this - it works just fine.
    – anon
    Commented Jul 17, 2023 at 22:00