How to Install and upgrade clients to Configmgr 2012 R2 Cumulative Update 3 (CU3)

In this post, i will discuss about how to install CU3 update and  How to Upgrade clients to CU3 with query based collections. Installation of CU3 is not that difficult ,it is straight forward .If you need step by step with screenshots ,you can refer my previous post http://eskonr.com/2014/03/how-to-install-configmgr-2012-r2-cu1-part-1/ So,as i discussed in my previous post…