I upgraded my RAM from 4GB to 8GB i purchased the compatibe RAM. I'm running windows 10. After I swap the RAM with the newer one i get the KERNEL_SECURITY_CHECK_FAILURE error. I tried disabling windows defender and still got the same error. i went to BIOS it's recognizing the 8GB Ram and the Processor is expandable to 8GB. I also ran a BIOS memory test with no issues.