Upgrade Bacup Exec 2010 R3 to BE 15

You can directly upgrade from BE2010R3 (only if its installed on a 64 bit server) to BE15.

Refer to https://support.symantec.com/en_US/article.HOWTO98878.html

Follow the below steps...

1) First of all check BE15 Hardware and Software compatibility list.

2) If your exiting hardware and software is compatiable with BE15 then proceed ahead.

3) On BE server stop all the BE services.

4) Make a copy of Data and Catalogs folder available in the Backup Exec installation directory.

5) Copy\Extract BE15 installables on the local drive of BE server.

6) Run the installation of BE15

7) During installation you will have to import license file (.slf)

8) Post installation run live update multiple times to install all the latest hotfixes.

9) Once BE15 is completely patched, update all the Remote Agetnts.

Refer to the below blog for BE15 helpful links.

https://www-secure.symantec.com/connect/blogs/backup-exec-15-useful-links