Microsoft nailed down the issue for the Windows 10 error, but it isn't an automatic fix. To solve the issue, you'll need to ...

In this case, to resolve the issue, you need to change the active partition by following the instructions in the guide on how to fix The drive where Windows is installed is locked – to do this ...

That particular partition's boot sector is used to start ... your computer maker or motherboard's BIOS manufacturer. An MBR ...

The recovery offers a Startup Repair option that can automatically ... The /Fixboot option writes a new boot sector to the system partition. Thus it allows Windows to boot normally.