If you run into upgrading your McAfee EPO server then here is a cool upgrade table. Make note that some versions are EOL (end of life) ePO 5.0 reached end of life (EOL) on December 31, 2014, and is no longer supported. ePO 4.6 reached end of life (EOL) on December 31, 2015, and is no longer supported Also make sure your OS is upported. here a overview table from McAfee website Server operating systems Microsoft operating system ePO 4.6 (EOL) ePO 5.0 (EOL) ePO 5.1 ePO 5.3 Microsoft Windows Server 2012 R2 (Standard and Datacenter) No No Yes1 Yes Microsoft [...]