Can we upgrade a DC server from Server 2003 to server 2012 server ?

We have a 32 bit server 2003 DC server. Can we upgrade it to server 2012 ? If yes then what are the advantages and disadvantages
SvlssAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Can you - Not directly and possibly not even indirectly.  Should you?  Absolutely not.  The recommendation is always to MIGRATE to a new server 2012 install, not directly upgrade!

If your existing Server 2003 DC is a 32 bit DC, then there is NO WAY to upgrade without performing a Migration as 2012 is a 64 bit only system and there has NEVER been an upgrade from 32 bit to 64 bit - that's always been migration.
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davorinCommented:
You can not directly upgrade 32 bit OS to 64 bit OS.
And I would never recommend to upgrade a domain controller.
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ploftinCommented:
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MaheshArchitectCommented:
make 2012 server member of active directory
Then install ADDS tools on 2012 server
Then logon to 2012 server with account that is member of domain admins, enterprise admins and schema admins
Then insert 2012 DVD and navigate to adprep.exe path on DVD from elevated command prompt
Then run below commands
adprep /forestprep
adprep /domainprep
adprep domainprep /gpprep
if you want to put RODC, then run, adprep /rodcprep

once these operations completed successfully, start server manager and install active directory server role

In reality you can directly run AD server role without running above commands
However, I prefer to run commands 1st to identify errors if any
I seen some times issues are reported after direct DC promotion
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tankergoblinCommented:
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SvlssAuthor Commented:
Thank you guys
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