win10 on iMAC w Monterey via OCLP fails with boot camp

Looking to install win20 via boot camp on my oplc’ed imac 2011. Made a 42Gb partition on my SSD drive but when i boot from usb stick either win20 iso prepared by boot camp I cannot chose the partition. It says no gpt and wont allow me to continue or reformat. not sure what to do…

submitted by /u/Difficult_Stuff3252
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