My pc meets all the requirements needed to install win10 but i still get the compareexchange128 error, it has sse1-4.1, NX and XD, but still gives me the error. I have NX enabled in bios. I have searched many forums trying to find help but still no luck. I have tried to install windows 8.1 as well and had the same problem. I have seen many people running windows 10 and 8 with similar core 2 duo processors and with worse specs then mine. I have heard of editing ntoskrnl.exe but that seems to only work with windows 8 installed since the ios file i have does not contain ntoskrl.exe . Any advice would be well appreciated.!