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"We couldn't install Windows 11
We've set your PC back to the way it was right before you started installing Windows 11. 0xc1900101 - 0x20017 The installation failed in the SAFE_OS phase with an error during BOOT operations. Results online indicate you should remove AV software, ensure drivers and firmware are updated, sfc /scannow, etc. Those probably won't fix it, but are good to do. This will probably fix your issue (this has worked many times for me): Recreate the EFI partition. You will need to boot from recovery (or Windows Install disk), or put the drive in a different computer so the drive is not active. Delete and recreate the EFI partition. https://helpfultechnotes.com/guide/321 Another possibility is to rebuild the Windows Recovery partition. This was not necessary for me yet, however it has fixed the issue for some other people. https://helpfultechnotes.com/guide/266 | |
Windows 10 to 11 Update Failed - 0xc1900101 - 0x20017 |