_WHEA_PROCESSOR_GENERIC_ERROR_SECTION_VALIDBITS

Windows 10 1703 Redstone 2 (Creators Update) x86
Windows 10 1709 Redstone 3 (Fall Creators Update) x86
Windows 10 1803 Redstone 4 (Spring Creators Update) x86
Sorry, but such structure doesn't exist in chosen version of the kernel.