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Hackintosh EFI for Dell Optiplex 5060MFF (35W) and 7060MFF (35W and 65W)
macOS 10.15 Clover EFI of DELL-Optiplex 7060/7040
My instruction for hackintosh installation on Dell OptiPlex 3060 with Intel Core i5-8500 CPU
Opencore installation guide EFI Folder - dell-optiplex-9020m