Bobby,
Because macOS Catalina was recently installed, I think you should do the following:
- Shutdown the system and flip power switch on PSU to Off.
- Unscrew and remove the macOS NVMe SSD from lower M2P slot.
- Flip power back on.
- Does your computer boot into Windows without any problem?
If Windows does not boot up normally,
STOP, and let me know.
However, if Windows boots up normally, then do this:
- Shutdown the system and flip power switch on PSU to Off.
- Install macOS NVMe SSD back into lower M2P slot.
- Insert macOS USB Install Disk.
- Flip power back on.
- Press F12 during BIOS Splash Screen to open the BIOS Boot Menu.
- Select the USB Install Disk.
- Re-install macOS -- but follow the procedure carefully in Catalina Mini Guide.
- When macOS installer starts, run Disk Utility and select parent name of the macOS NVMe SSD. If you don't select the parent name, the macOS disk will NOT boot.
- Format the disk as stated in the Catalina Mini-Guide.
- Name: Catalina
- Format: APFS
- Scheme: GUID Partition Map
- Now begin the macOS installer.
- Follow the Catalina Mini-Guide procedure. Whenever computer reboots automatically during installation, you mustpress F12 and select the USB install disk.
- But you must select the correct intermediate boot volume from Clover Boot Menu each time the system reboots during installation.
- Please follow the Catalina Mini-Guide. Print a copy of it on paper if needed.