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Upgrade to Exchange 2010 SP3


I have an Exchange server 2010 with SP2 / rollup 5 . I cannot place rollup 6 on it since I read somewhere that I have to uninstall all rollups prior to installing this. Is this true?

My aim is to go to SP3 and any stable rollups.

Can just install SP3 over my current setup?

I have another exchange server with SP2 with no rollups installed.

4 Solutions
I can not confirm to unistall a rollup to install a later one. rollups are only a collection of updates. So it doesnt makes a difference if you install one by one or by a rollup. The only exclusion is if there is outdated update.

Please make sure your other software can handle exchange sp3. In my case i had problems with the backup software from Symantec.

You can install a sp always direktly thats why its a servicepack.
Rollups are cumulative so you can go straight to RU6 (although RU8 is the latest rollup I believe)
If you go to SP3 it involves a schema update and if thats an issue for you then you should stick withe the SP2 rollups.
The following article may be of use if you go the SP3 route, which is currently at RU6.
Simon Butler (Sembee)ConsultantCommented:
There is no need to remove the rollups. You have either read the wrong information, or misinterpreted the documentation from Microsoft.

There are three types of updates for Exchange 2010:

Service Packs (currently SP3)
Cumulative Updates/Rollups
Interim Updates.

What Microsoft are referring to when you have to uninstall things before installing a rollup is interim updates.
These are not made public, they come from Microsoft Support in response to a specific technical issue. If you have never contacted Microsoft Support for Exchange issues and been given an update, then you have nothing to worry about, just install the latest rollup.

Exchange 2010 SP2 is now out of support, so you should upgrade to SP3 anyway. Once done you can then install the latest rollup. I would not recommend to anyone sticking with SP2. SP3 has been out long enough that issues with schema updates should have been resolved by now.

An in-place upgrade is allowed, as each CU or SP of Exchange is actually the entire product.

About the only issues I have ever had revolve around 3rd party functionality - malware protection, client versioning, transport agent functionality, etc.

Just make sure you have a working backup of your Exchange and AD environments, as you will be updating the schema.

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