1
Remove the bootable USB from your system.
Boot your system into BIOS, restore optimized defaults.
Go to the Boot Priority list, ensure 'Windows Boot Manager' set as the primary boot device.
Save that setting and check if the existing Windows installation will boot up correctly.
2
If that does not get Windows booting up. what method did you use to create the bootable USB and please provide a screenshot of the contents of the bootable USB you have created.