Windows 10: Missing operating system.

My laptop shows missing operating system after I wiped some volume if not all of them in my disk from Microsoft diagnostic tool. I don't know what to do I inserted a DVD and it still shows missing operating system. It's a hp G70.

:)

 

After updates Windows 10 says "Missing operating system"

I have the same issue, and I followed your suggestion steps. After that, I can see C: drive, and Windows folder is there.

Then I rebooted the computer. But I still have the missing the operation system issue. Any suggestions?

Thanks.

 

Programs not working

In post 26 there were steps listed to fix the operating system corruption.
Are you able to follow them?
In post 29 was the suggested dism repair command.

 

"Missing operating system" after clean install of Windows 10

Hi,

Thank you for responding.

I understand the inconvenience you are facing issues with upgrading to Windows 10.

Do let us know if you have tried the troubleshooting steps being provided by Akheel Ahmed in the above post?

If not yet tried I suggest you to follow the below:

As there are different error notifications related to this issue like: "Missing operating system" and "An operating system wasn’t found".

If you are getting the error “An operating system wasn’t found”. If you are seeing “An operating system wasn’t found” please see Knowledge Base article
3103656.

For reference: “Missing
operating system” error when upgrading to Windows 10

Hope it helps. Reply to the post with an updated status of this issue for further assistance.