I NEED HELP: After I installed Catalina with dosdude1's patcher on MacBookPro5,5 (Mid 2009 MacBook Pro), I decided to remove Catalina, I deleted all the Catalina patcher related partitions and I'm left with only my El Capitan partition.
However, I now want to install windows on the computer with boot camp and it succeeded everything but when I restarted the computer and held option key, I don't see the USB drive being detected and instead, I see El Capitan, EFI Boot, and Recovery. I tried clicking on EFI Boot and what it does the Catalina patcher verbose thing but it boots straight to El Capitan instead of Catalina because I removed it. The USB works fine, and I've used it before with no issues. I also tried using other USB drives that i had lying around but that didn't fix it either. Please tell me if I'm in the wrong thread or not. Thanks.