Inaccessible Boot Drive after Update?

Looks like System Reserved partition has not been assigned a drive letter. The Volume 3 partition should contain BCD data store file we will assign a drive letter and check to see if BCD data store file exist if it does we will rebuild it.


From Command Prompt type below commands:

Code:

Select Volume 3 

assign letter=w

Exit

Dir /A  /B  w:\boot\bcd

Please post a screenshot of above commands outputs.

Here it is IMG 20180118 133811 — imgbb.com

You have not executed two of the Diskpart commands please execute below commands one at time:

Code:

Diskpart 

List Volume

Select Volume 3 

Assign letter=w

Exit

Dir  /A  /B  W:\Boot\Bcd

Please post a screenshot of above commands outputs.

In the screen shot you can see that the letter W has been assigned. Thank you!

what were the outputs of the commands from Inaccessible Boot Drive after Update? - Page 2 - Windows 10 Forums

it looks like C: is the correct drive for your system - however a dir output would also help to verify...
it looks like your bootable drive. the 100mb reserve now assigned W is a normal reservation.

I'm thinking you got same errors on fixboot = denied and rebuildmbr - failed with 0 installs found...

Oh my bad i did not notice that can you execute below command and restart your computer.

Code:

bcdboot C:\Windows /s w: /f ALL

Windows found on C, but Y enter gives error.

Here it is ​IMG 20180118 141044 — imgbb.com

Have you restarted your computer if Windows does not boot we will continue with troubleshooting steps.

AMAZING! Thank you so much my friends!