issues with installing Catalina on pc

when i try to install Catalina onto my pc, the installation goes fine, but after the final progress bar and reboot, it shows no operating system found and refuses to boot from the harddrive. what's the problem? i followed a tutorial online of how to install but it doesnt work. i followed the steps to create the usb and clover, am i doing something wrong? i followed the videos, with bios settings correct

submitted by /u/1234abcdcoolness
[link] [comments]