I have symantec enpoint protection more specifically the server manager and clients have the ekdosi11.0.6005.562.
Is scheduled to be upgraded to new version of symantec endpoint protection 12.1.2 (RU2).

My questions are the following:

1) When i download the new version will have to run a special exe or directly from the setup that will have the new version will become the upgrade;

2) Will keep the policies i have in the current issue or i will have to create from scratch?

3) Is any way to erase from the home tab some alerts that shows me?

You run the setup.exe file from the SEPM folder.

Yes, policies will be kept in place.

What type of alerts are referring to?

Also, just so you know, 12.1 RU3 just came out last week. I would suggest going to that if you can. See below:

Best practices for upgrading to Symantec Endpoint Protection 12.1.x

http://www.symantec.com/docs/TECH163700

New fixes and features in Symantec Endpoint Protection 12.1.3

http://www.symantec.com/docs/TECH206828

Symantec™ Endpoint Protection, Symantec Endpoint Protection Small Business Edition, and Symantec Network Access Control 12.1.3 Release Notes

http://www.symantec.com/docs/DOC6549

Upgrading or migrating to Symantec Endpoint Protection 12.1.3 (RU3)

http://www.symantec.com/docs/TECH206823

Knowledgebase Articles for Symantec Endpoint Protection 12.1. RU3

http://www.symantec.com/connect/blogs/knowledgebase-articles-symantec-endpoint-protection-121-ru3

Latest Symantec Endpoint Protection Released - SEP 12.1.RU3

http://www.symantec.com/connect/blogs/latest-symantec-endpoint-protection-released-sep-121ru3

Hello,

Recently SEP 12.1 RU3 has been released which you can upgrade your server from 11.x to 12.1 RU3.

What's new with Latest Symantec Endpoint Protection SEP 12.1.RU3

https://www-secure.symantec.com/connect/blogs/whats-new-latest-symantec-endpoint-protection-sep-121ru3

It avaible in Symantec File Connect.

https://symantec.flexnetoperations.com/control/symc/registeranonymouslicensetoken

Upgrading or migrating to Symantec Endpoint Protection 12.1.3 (RU3)

New fixes and features in Symantec Endpoint Protection 12.1.3

When i download the new version will have to run a special exe or directly from the setup that will have the new version will become the upgrade?

Run the Setup.exe

Will keep the policies i have in the current issue or i will have to create from scratch?

Policy will be work same as per your assigned.

Is any way to erase from the home tab some alerts that shows me?

Which of the alert you want to erase.

Hello,

Answers:

1) When i download the new version will have to run a special exe or directly from the setup that will have the new version will become the upgrade;

Once the Download of SEP 12.1 RU3 takes place, you would have to unzip the DVD and run the setup.exe to Migrate the SEPM from your earlier version.

Please follow the Best Practices to Migrate from the Earlier version of SEP 11.x to the SEP 12.1 RU3.

Best practices for upgrading to Symantec Endpoint Protection 12.1.x

http://www.symantec.com/docs/TECH163700

2) Will keep the policies i have in the current issue or i will have to create from scratch?

Yes, it would keep the same policies from your earlier SEPM.

3) Is any way to erase from the home tab some alerts that shows me?

Upon Migration, I don't think you would see the alerts which you had seen in the older version.

Secondly, I would suggest you to Migrate all the SEP client to the Latest version of SEP 12.1 RU3.

You may be interested in the below BLOG's which may assist you - 

1) Latest Symantec Endpoint Protection Released - SEP 12.1.RU3

https://www-secure.symantec.com/connect/blogs/latest-symantec-endpoint-protection-released-sep-121ru3

2) What's new with Latest Symantec Endpoint Protection SEP 12.1.RU3

https://www-secure.symantec.com/connect/blogs/whats-new-latest-symantec-endpoint-protection-sep-121ru3

3) Knowledgebase Articles for Symantec Endpoint Protection 12.1. RU3

https://www-secure.symantec.com/connect/blogs/knowledgebase-articles-symantec-endpoint-protection-121-ru3

4) Knowledgebase Articles for Symantec Endpoint Protection SBE 12.1. RU3

https://www-secure.symantec.com/connect/blogs/knowledgebase-articles-symantec-endpoint-protection-sbe-121-ru3

Hope that helps!!!

Thanks for your help. I have one last question

My pcs have both 32bit and 64bit version of windows and the sep clients have also the same version.I want to upgrade clients with autoupgrade so with autoupgrade the sep clients will upgrade with the corect version or i must find another way?

You assign both the 32/64 bit patch to the group. They will take it accordingly.

What is the best way with autoupgrade or with liveupdate  policy?

Autoupgrade is the best way, LU policy of clients will update only definitions, product updates are only availabe on SEPM not on the clients, the clients have to take the update only from SEPM ( auto upgrade) or push deployment.

Use Autoupgrade to upgrade the client both 32 and 64 bit

How to upgrade Symantec Endpoint Protection clients by using Auto-Upgrade

Live Update is only use for the Definition updation.

Other pending system whixh is offline and have not connected with server.

You can use the Deployment wizard

Overview of Push Deployment Wizard in Symantec Endpoint Protection 12.1

Hi

Please refer the link below

http://www.symantec.com/business/support/index?page=content&id=TECH163700&actp=search&viewlocale=en_US&searchid=1371182409560

Regards

Hello,

Please check with below article's.

Upgrading clients by using AutoUpgrade in Symantec Endpoint Protection

http://www.symantec.com/business/support/index?page=content&id=HOWTO80780

Upgrading clients by using AutoUpgrade in Symantec Endpoint Protection Small Business Edition

http://www.symantec.com/business/support/index?page=content&id=HOWTO81274

Best practice to upgrade SEP 11.x clients to SEP 12.x

https://www-secure.symantec.com/connect/forums/best-practice-upgrade-sep-11x-clients-sep-12x

What is the best way with autoupgrade or with liveupdate  policy?

AutoUpgrade is Best solution and it use for Upgradation.

Article - HOWTO80780

LiveUpdate policy is use for different work. LiveUpdate can only apply definition updates contents on client systems

In my SEPM i have two groups where each group has 25 computer each group have a mixed version of windows 32 bit and 64 bit.If upgrading the clients with autoupgrade it  would ask me to give an installation package either 32bit version or 64bit version in this case advise me what to do.

Assign both 32 and 64 bit. It should install the required one.

You can add both of the packages (32 and 64). Client will recieved update version as per the compatiblity

Hello,

AutoUpgrade is the correct method to migrate all the clients to the latest version.

How to upgrade Symantec Endpoint Protection clients by using Auto-Upgrade

http://www.symantec.com/docs/TECH96789

LiveUpdate policy is used for Liveupdate definitions and minor product updates / releases. However, this could not be used for upgrading the client machines.

I believe you are talking about the "Product Update Settings" in the Liveupdate policy. Please check the Article below:

Symantec Endpoint Protection Manager 12.1 - LiveUpdate - Policies explained

http://www.symantec.com/docs/TECH178257

Hope that helps!!