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.NET Framework updates on Windows Server 2012 R2 and Exchange Server 2013 SP1 ?

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Last Modified: 2017-07-02
Hi All,

Do I need to uninstall all of the .NET framework updates before installing Exchange server 2013 ?
or avoid any .NET Fx update at all cost on Windows Server 2012 R2 ?
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Pavel NagaevLead email system administrator
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Dinesh BabuMessaging Engineer
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Senior IT System EngineerSenior Systems Engineer
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OK, so what about the other mailbox server that is already existing in my domain ?

some of them is running SP1 only and just SP1+CU1

If I install the new server with Mailbox role SP1+ CU15 then configure DAG, is that still going to work ?
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Senior IT System EngineerSenior Systems Engineer
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Dinesh,

Yes for all mailbox servers they are all the same OS.

But he problem is the existing mailbox server is still on SP1 with no CU.

So if I patch now to the latest CU, there will be massive outage since there is no DAG configured.

I want to avoid outage hence I'm configuring DAG.
Dinesh BabuMessaging Engineer

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Yes, Its good to configure DAG to prevent SPOF.
AmitIT Architect
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OK,
 
Guys, to avoid any confusion and avoid any outage, therefore based on the existing version of the mailbox server 15.00.0847.032 running Exchange Server 2013 SP1as at February 25, 2014. I will just install the new mailbox server with Service Pack 1 only to make it the same level.

As for installing it from the scratch, I will be using https://technet.microsoft.com/library/bb691354%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396#prereq to install the prerequisite.

However, since this is blank / new server, I will need to avoid installing .NET Framework 4.6.2 since I must install CU16 to make sure Exchange is running fine during the installation.

Exchange 2013 CU16 and later require .NET Framework 4.6.2. Upgrade your servers to .NET Framework 4.6.2 before you install Exchange 2013 CU16 or you'll receive an error. If .NET Framework 4.5.2 is installed on your Exchange servers, upgrade your servers to Exchange 2013 CU15 before installing .NET Framework 4.6.2.

Correct me if I'm wrong.

Thanks to Amit, yes, I will follow that steps after successfully configuring the DAG.

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