Hi,
I am Sumit, an Independent advisor and a Microsoft MVP here to help.
On a working computer, create an Installation media of Windows 10 that allows you to repair existing Windows Installation.
Create a USB Flash Drive
https://www.tenforums.com/tutorials/2376-create...
Boot from the USB Flash drive-Make sure you have disabled Secure boot/Fast boot in BIOS Settings.
https://www.tenforums.com/tutorials/21756-boot-...
https://www.tenforums.com/tutorials/21284-enabl...
Then open Advanced Startup options after the computer boots from USB. Click Repair your computer at the first screen that says Install now.
https://www.tenforums.com/tutorials/2294-boot-a...
Select Startup repair, let it finish the job and see if the computer can boot afterward.
Please let us know if you need any assistance.
Disclaimer:
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