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Could not get Windows 11 upgrade through Windows Update (see: Windows 11 update check cached?)

So I downloaded ISO, mounted it from drive C and ran setup.exe as recommended on multiple blogs.

It worked fine through to almost the end. After some time the setup wanted to reboot but could not find the boot device - failed with INACCESSIBLE BOOT DEVICE twice and then rolled back the install..

The C drive is Gigabyte AORUS 2TB M.2 PCIe 4.0 SSD (GP-ASM2NE6200TTTD)

BIOS:

Launch CSM = disabled
Secure Boot state = user
Platform Key (PK) state = unloaded
OS Type = Other OS
AMI Native NVMe Driver Support = enabled

How can I make it work?

enter image description here

Boppity Bop
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2 Answers2

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Check the basics:

Make sure UEFI and Secure Boot are both enabled.

Make sure the computer is less than 35 months old.

Then, best (in my view) if you are not running a dual-boot system, especially with some OS that wants UEFI turned off.

Go to Git Hub and get WhyNotWin11 and run it. See what items it enumerates that will cause Windows 11 to fail.

So I downloaded ISO, mounted it from drive C and ran setup.exe

Microsoft is checking machines before updating and it is going to take a while. You can only "force" it if everything (Windows 11 requirements) is good and correct.

You also might consider waiting some days and see if the upgrade happens normally. That is how many upgrades will happen.

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You wrote: I downloaded ISO, mounted it from drive C But you don't show instrumental of mounting ISO on Windows 11. Therefore i'll write abstractly. Windows use 'persistent' option for many operations and you must read help your instrument. I think option persistent should be good. But it can be not. That you must point Windows to run your instrument to mount ISO image. You can run as Administrator regedit.exe, find HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run in registr and add simbolic string with name mount and value repeated your mounted instrument. But i havn't shure that setup will be to read this key. But i perpose Windows will read this key before to run setup secondary. Try it.

Nick
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