Cannot boot up Windows 10 after installing Manjaro

Your problem is you have installed Manjaro in EFI mode, and Windows is in MBR.
Never mix UEFI with MBR partition scheme.
I think you should reinstall Manjaro in MBR mode

When you install Manjaro, if you don’t want to reinstall Windows, you have to disable EFI in the Bios firmware.

You can this detailed guide:

Good luck. :wink: