Endpoint Protection

i cannot install my current version for windows 10 users.. 

How can i upgrade my pack to 12.6 so that it will comaptible with all users..  ? 

You can download the latest version here using your serial:

https://symantec.flexnetoperations.com

Upgrade guide is here:

Upgrade or migrate to Symantec Endpoint Protection 12.1.6 - 12.1.6 MP4

I can only download from there my current version and this version is not working wiht windows 10 

You don't access to 12.1.6 MP4? This is the latest.

Is your support still valid?

I cannot find anyupdates there.. 

Best to call support then. May be a serial/licensing issue.

How can i do that..  do u have  any links to share

Try here:

https://support.symantec.com/en_US/contact-support.html

i just spoke to them , i can only upgrade to cloud version is they say  

Ahh that's because your running Small Business Edition, which is end of life. Yea now you have to go to the cloud version

Hello,

In case you are running Symantec Endpoint Protection 12.1 SBE, in that case, the on-premises version of the SEP SBE product has reached End-of-Life status https://support.symantec.com/en_US/article.DOC8217.html). This means that there will be no further updates - including updates to support Windows 10.

https://support.symantec.com/en_US/article.DOC8919.html

Here is an URL (https://www.symantec.com/page.jsp?id=sbe-migration) which does include instructions on how you can migrate your SEP SBE On-Premises clients and policies into the Hosted (or .Cloud) version of the product.

Note: This does NOT mean the customer needs to immediately upgrade their product. Customers will be able to renew their on-premises license and continue to use their SBE SEPM’s until 2018.http://www.symantec.com/docs/TECH215058

But Small Business Edition 12.1 RU5 (12.1.5337.5000) is not compatible with Windows 10 OS & there is no release planned for this edition, either upgrade/migrate to Enteprise Edition or SBE.cloud to to receive Windows 10 support.

Additionally you can purchase the Enterprise version of the product and also do an in-place upgrade. (https://support.symantec.com/en_US/article.TECH163700.html). As of the time of writing this there is a discount for SBE customers to upgrade to enterprise.

If you are interested in upgrading from SBE to Enterprise please contact our Sales group at 1 (800) 745-6054 and request to speak with Renewals.

You may like to check this article as well - 

Windows 10 support for the Cloud version of Endpoint Protection Small Business Edition

https://support.symantec.com/en_US/article.DOC8908.html

Regards,