MSDN or TechNet Documentation of Hex Error Codes

Hello. While doing some research, I saw some error codes in Hex format. Something like 0x800 and Facility 7 = Windows. As it literally pertaining to error code 0x800….. in Windows 7. My question is does anybody here knows or heard about the Microsoft Developer Network (MSDN) or document from MS TechNet that lists the entire Hex error codes configuration of Windows computer. Can someone please bear with me as I am very noob in terms of computers? Thank you.
