Before I became a “SYSTEM ENGINEER” in one of the Symantec Resellers here in our country. I was a bit ignorant. All I knew about Symantec was the "Virus" solutions capability.The local CENTRAL BANK had security requirements on their environment, that I was assigned to manage the multi-tier protection product - specifically SEP 11. During the preparation phase, we gathered some information about the current setup and requirements. Afterwhich, we planned for the deployment. Thankfully, during our requirements gathering, we found out they were already utilizing Symantec Antivirus Corporate Edition Version 8. Oddly, during this same timeframe, SAV 8 was no longer available, Of course, this meant the virus definition updates, based on the System Administrator who handled the AV solution before we came, had not renewed the license for 4 years. After several negotiations and proof/ of concept documentation that Symantec's solution would comply with the multitude of requirements (like Viruses, Prohibiting illegitimate applications, controlling the devices for non company property etc), they felt confident Symantec Endpoint Protection 11. On to the deployment stage! The client was wondering how we could deploy the AV solution on the clients since they have an existing AV solution. We explained the ease of installation by using the "push install" on the 4000 clients, including remote sites. Unfortunately, after doing this push deployment, we encountered some issues which did not allow us to install on all the clients included - 1. not all the PCs were joined on their domain. 2. not all the PCs are firewall disabled, (we needed to think of other installation procedures. Since they were using a legacy version of Symantec, we didn't need to uninstall the software, but rather, upgrade from version 8 to SEP 11. This allowed us to setup the clients which were firewall disabled. At that point, we had a successful deployment. SEP Resolving issues Before viruses are free to pass and propagate on networks and pc’s get infected, SEP identified roughly 1500 viruses. So moving on, there is some older local viruses that Symantec 8 didn't catch, that SEP 11 was able to correctly detect and remove. Thanks again to Symantec as they have a Security response team that allows us to submit the suspected virus and file for them to analyze.