Windows 10: Surface Pro 9 Inaccessible boot device

I have a SP9 that is unable to boot after a windows updated. Here is the output of my current troubleshooting. Any help is greatly appreciated. sfc /scannow: found and repair errors, issue persistsbcdeditWindows Boot Manager--------------------identifier {bootmgr}device partition=\Device\HarddiskVolume1path \EFI\Microsoft\Boot\bootmgfw.efidescription Windows Boot Managerlocale en-usinherit {globalsettings}default {default}resumeobject {5ccdcba4-945d-11ee-9401-96e64303ba36}di

:)

 

Inaccessible boot device

This is a Microsoft link on inaccessible boot device:
https://docs.microsoft.com/en-us/win...le-boot-device

It is an intermediate level link.
There are more advanced steps that can be ran once the partition structure is known.
There are steps for repair of the boot sector, operating system, etc.
Sometimes this bugcheck can be caused by windows updates.

A reset save files equivalent may be able to be performed.
Alternatively a clean install can be performed once important files are backed up.

 

Boot Surface Laptop to USB - no Volume button

Hello Jimmy,

This doesn't list the "Surface Laptop", but you might give it a try to see.

*Arrow Boot Microsoft Surface from a USB device

Otherwise, you should be able to use OPTION ONE below to boot from the USB from advanced startup.

*Arrow Boot from USB Drive on Windows 10 PC Windows 10 Installation Upgrade Tutorials

 

inaccessible boot device

Ciao,

here is a list of commone causes (and resolutions) of this BSOD:

http://www.thewindowsclub.com/inaccessible-boot...

Please let me know if any of those worked for you.

Ciao

Ugo