Today we got this error after Motherboard replacement on HPE ProLiant Gen9 Server. This problem occurs on "Microsoft Windows Server 2008 R2 " which UEFI Optimized Boot selected "Enable".
Cause: UEFI Optimized Boot is Enabled
Solution: "Disable" UEFI Optimized Boot and restart the server. Also, check Secure Boot Enforcement under security options. It must be "disable".
Check this link for more details.