How to do installation of backup exec 2012 on windows 2012 operating system
Please try with this.
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Ambesh: I'd suggest you make yourself familiar with the BE forum and BE in particular...there is no official support for Windows Server 2012 at this point in time.
The OP is going to be unsupported...check the SCL for any version of BE which will indicate what software IS supported.
Alternative ways to access Backup Exec Technical Support:
No version of BE currently supports WIndows Server 2012, but there is a beta that will start up in the next couple of weeks for BE 2010 and BE 2012 which will end up supporting this OS.
As such, even if you install it now, you will be unsupported...