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FXE-9887 avatar image
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FXE-9887 asked joyceshen-MSFT commented

Remove old Exchange OWA versions

Hi all,

We have 2 Exchange 2016 servers which have been running for more than 2 years now.
We have applied several CU during this period and now we can see that significative amont of disk space is used by old OWA versions (in %ExchangeInstallPath%ClientAccess\Owa and %ExchangeInstallPath%ClientAccess\Owa\prem).

How can I safely remove theses old versions ?

Thank you.
Regards,

office-exchange-server-administrationoffice-exchange-server-itpro
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AndyDavid avatar image
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AndyDavid answered

I never do, but give it a try. Don't delete them just yet, move to another directory and test that everything still works. If no issues, remove them!
https://webbanshee.net/remove-old-owa-versions/

https://www.alitajran.com/remove-old-exchange-owa-files-to-free-up-disk-space/

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FXE-9887 avatar image
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FXE-9887 answered AndyDavid converted comment to answer

Hi Andy and thank you for your answer.

I've already seen these articles, but I'm not convinced about them as they are not Microsoft issued.

Is there really not any official article about this context ?

Regards,

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AndyDavid avatar image
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AndyDavid answered

No there isnt ;)
If you look at the first article, you can see it references an old Technet forum question that I answered :)
https://social.technet.microsoft.com/Forums/en-US/f3731694-ae4a-47d8-b921-a61e47c2b757/remove-old-owa-files-after-cumulative-updates?forum=Exch2016GD

I have always been of the opinion to just leave the old files there, but if you want to remove them, move them to another location first leaving the current ones and test :)

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FXE-9887 avatar image
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FXE-9887 answered joyceshen-MSFT commented

OK. Surprized about MS Exchange Team has never address this behavior.

I moved all folder which not correspond to our current servers version to another folder.
Wait and see until our Exchange servers next reboot.

Thank you.
regards,

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FXE-9887 avatar image
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FXE-9887 answered

Hi @joyceshen-MSFT,

Next reboot is planned next saturday night.
I'll give you my feedback on next monday.

Regards,

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FXE-9887 avatar image
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FXE-9887 answered joyceshen-MSFT commented

Hi all,

All is right since our Exchange servers last reboot.

Now one question remains : how should I deal with the old OWA versions located in \Program Files\Microsoft\Exchange Server\V15\ClientAccess\Owa ?

Thank you.
Regards,

· 2
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Same way? Move , then test. If no issues, you can remove them.

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Hi,

After verifying that everything is working properly, you could mark the helpful reply as answer! Thanks for your understanding!

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