Since Build 6003 has no ongoing support, migrate immediately:
To understand Build 6003, it is necessary to look at the version hierarchy of Windows Server 2008: windows server 2008 build 6003
The version number can be verified by running the winver command in the Run dialog. Since Build 6003 has no ongoing support ,
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
Expected Output:
OS Version: 6.0.6003 N/A Build 6003