Video Screencast Help

Upgrade to SEPM 12

Created: 14 Feb 2013 • Updated: 14 Feb 2013 | 3 comments

I'm currently using SEPM 11 (installed at C: partition) on my Windows 2008 server. When I wanted to upgrade to SEPM 12, it rejected because it required at least 6GB space where my C: partition left about 4GB only. I saw the D: partition still got plenty of space, so I follow the first step at here to backup all the required files before uninstall SEPM11 & decided to reinstall it back to D: drive, restore backup & perform upgrade. Before I begin all these, I inserted the SEPM 11 installation CD to make sure it's still working & I got this error "Installation of Symantec Endpoint Protection Manager is not allowed on Windows Vista".

Now I'm stuck. Anyway I can download latest version of SEPM 11 that can install on Win 2008? Or any solution to solve this?

My SEPM version is 11.0.4014.26.

Thank you.

Comments 3 CommentsJump to latest comment

Mithun Sanghavi's picture


So, you have a bacup of SEPM 11.0.4014 database, correct?

You are trying to install the same version of SEPM on Windows 2008 again correct??

If yes, then you may need to install the same version of SEPM of which you are carrying the backup of.

Is the previous SEPM from the Windows Server 2008 been uninstalled??

If not, I would suggest you to Download the Latest version of SEPM 11.0.7303 OR SEPM 12.1 RU2 from the

Check this Article:

Latest Symantec Endpoint Protection Releases - SEP 12.1 RU2 and SEP 11.0 RU7 MP3

If you are planning to upgrade or migrate to Symantec Endpoint Protection 12.1.2, please take a look at the latest how-to article created by our very own SEP content council team.

Hope that helps!!

Mithun Sanghavi
Associate Security Architect


Don't forget to mark your thread as 'SOLVED' with the answer that best helped you.

ᗺrian's picture

You can go right to 12.1.2. See this KB for all the details:

Best practices for upgrading to Symantec Endpoint Protection 12.1.2

padding: 1px;padding-bottom: 3px ;font: 12px Arial; text-align: left;color: #666666; background-color:#f2f2f2">Article:TECH163700 padding: 1px;font: 12px Arial; text-align: left;color: #666666;background-color:#f2f2f2;"> |  padding: 0px;font: 12px Arial; text-align: left;color: #666666;background-color:#f2f2f2;">Created: 2011-06-30 padding: 1px;font: 12px Arial; text-align: left;color: #666666;background-color:#f2f2f2"> |  padding: 1px;font: 12px Arial; text-align: left;color: #666666;background-color:#f2f2f2">Updated: 2013-01-02 padding: 1px;font: 12px Arial; text-align: left;color: #666666;background-color:#f2f2f2"> |  padding: 1px;font: 12px Arial; text-align: left;color: #666666;background-color:#f2f2f2">Article URL

Please click the "Mark as solution" link at bottom left on the post that best answers your question. This will benefit admins looking for a solution to the same problem.

SebastianZ's picture

Direkt upgrade path from 11 MR4 to 12.1 RU2 is available:

Upgrade and Migration paths

Symantec Endpoint Protection 12.1.2 (RU2) can upgrade seamlessly over the following:

  • Symantec Endpoint Protection 12.1.1101.401 (RU1 MP1)
  • Symantec Endpoint Protection 12.1.1000.157 (RU1)
  • Symantec Endpoint Protection 12.1.671.4971 (RTM)
  • Symantec Endpoint Protection 11.x (can be upgraded to enterprise version only)
  • Symantec Endpoint Protection Small Business Edition 12.0