I'm using epo 4.0 of patch 7th Agent installed version 4.5 (1852). During the epo console update from version 4.0 to 4.5 witch patch 3 on most computers, there is a problem with the framework (mcafee). Computers were very slow to act, CPU usage has increased significantly (freeze). Is the problem lies in the installation sequence of the epo 4.5 patch 1 then 2 and 3 Do you met someone with such a problem?
You should try to redeploy the agent on few test machines or to deploy agent 4.6.