Microsoft Technical Takeoff
Nov 27 2023 07:00 AM - Nov 30 2023 11:30 AM (PST)
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"We couldn't update the system reserved partition"

Copper Contributor

Recently I joined windows insider and tried installing dev build but the problem is that after downloading is finished in settings the windows installer opens up and says "We couldn't update the system reserved partition"



Can anyone help me with this?

Thank you.

5 Replies
best response confirmed by SuperDrago (Copper Contributor)

Hello @SuperDrago,


See if this video fix helps you:



Let us know if this helps!

@Kapil Arya 

Hi Kapil Arya,
Thanks for your reply.

I am sad to say that this method didn't help.


This is shown when I am entering "mountvol y: /s"


Also let me inform you that the efi partition is 100% free


I will be happy if you helped me on this :)


Thank you.

Hi, this fixed the problem.
Only I had to do was to type efi after the command "mountvol y: /s"

Thanks for the help.
Glad the issue is resolved, thanks for update!
Great work together everyone! ;D