Hi. I need advise from fellow forumers. I'm using Win 10 on M2 SSD. I recently read that disabling CSM in BIOS will speed up the boot process. But when I disabled CSM, Win 10 actually took a very long time to boot up and once boot up completed, my WIFI becomes disabled. If I re-enable the CSM, everything goes back to normal.

I even tried to re-install Win10 but the bootable USB hanged at the MB logo with an error binary message if I disable CSM. Installation is smooth if CSM if enabled.

My MB is Gigabyte B450 I Pro Wifi with Ryzen 5 2600.

Any ideas what's going on?