Cannot apply SP2 or SP3 to Exchange 2007


We need to update our Microsoft Exchange Server (2007) to SP3 in order to set up a hybrid environment to facilitate staged migration to O365, however we are unable to install either SP2 or SP3.

When running the SP2 setup - it passes the checks - but fails with the error 'Unable to remove product with code 24b2c164-de66-44fe-b468-a46d9d5e6b31.  This update package could not be opened.  Error code is 1635.

We have tried re-downloading the package - no luck.
iain_stephenIT ManagerAsked:
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Seth SimmonsConnect With a Mentor Sr. Systems AdministratorCommented:
try this...

download this file and save it in c:\windows\installer folder...

...then try SP3 installation again
seems that file is missing
Simon Butler (Sembee)Connect With a Mentor ConsultantCommented:
Forget about applying SP2, it is very old. I would stick to SP3.
Ensure that any AV software has been disabled. Do you have Forefront installed on the machine? That can generate the error.

Do you have any rollups installed on the server already? If so, try removing them.

iain_stephenIT ManagerAuthor Commented:
Interesting - ok - we will review this tomorrow..
iain_stephenIT ManagerAuthor Commented:
FYI - We do NOT have ForeFront on the machine - McAfee GroupShield but disabled it while attempting to update...

Other roll-ups may be there though...
iain_stephenIT ManagerAuthor Commented:
Thanks very much.  Combined approach did the trick.
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