When you see two Windows 10 options at startup, it usually means there are multiple boot records on your system. This can happen if you've installed Windows multiple times without formatting. For a permanent fix, I suggest that you reinstall Windows. Please refer to my previous response for the steps.
NOTE: If you have multiple partitions listed, select each one (starting at the bottom), then click delete until there is only a single (one) unallocated drive displayed in the window. https://answers.microsoft.com/en-us/insider/for...
Thank you.