Warning W220 - The CPU serial number is enabled. This unique identifier can be used by software to identify your system for various purposes (transactions, software licensing, etc.). Most CPUs today have this identifier but it is turned off.
Fix: If you consider such an ID an invasion of your privacy, then you should be able to disable it from the BIOS. See the main board manual on how to do so. There is also a program on IntelΓÇÖs website that can help should the BIOS not support such an option.
For more information, please see the (FAQ).