Hello,
Thank you for posting your query in Microsoft Community.
You may download the Windows 10 ISO and create a Media Creation tool and then perform Startup Repair.
Refer to the following link:
http://www.microsoft.com/en-us/software-download/windows10
(Refer to the section "Installing Windows 10 using the media creation tool
" in the above article for creating the tool).
Once you have the installation media, follow the steps:
-
Start your computer from the installation media. Insert the disk or USB stick and restart your computer. If you see a message asking you to “Press any key to boot from DVD,” do so. If you don’t see the message,
you might need to change the boot order in your computer's BIOS settings so that it first starts from the disk or USB. When you see the 'Install Windows' page, tap or click 'Repair your computer' link to start the Windows Recovery Environment.
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In the Windows Recovery Environment, on the Choose an option screen, click 'Troubleshoot'.
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Click, ‘Advanced Options’ and then click on 'Startup Settings' and select ‘Restart’.
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After this complete the repair and see if you are able to boot in to your computer.
Refer the link for reference:
Change startup settings in Windows 10
http://windows.microsoft.com/en-us/windows-10/change-startup-settings-in-windows-10#v1h=tab02
I hope this helps you. If you have any further query in future, feel free to contact us. We will be happy to help you.
Thank you
