Hello , 

We have installed Lync 2010 using "Lync.msi" in our estate (x64) Product Code : {81BE0B17-563B-45D4-B198-5721E6C665CD}

When we try to install the latest MS Security update KB2899397, the installer fails with the error code 2709. 

The log file indicates the below. 

The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2709. The arguments are: PurgeOCSetup, , 

The patch KB2899397 is installing as expected if we run it on the machine where Lync 2010 was used using "Lync.exe" [Product Code: B3107AA-FBF8-4003-8785-EC789C2AE0C2]

It is not a feasible solution to re-install "Lync.exe" on all user machines in the estate. 

Please let me know how to proceed with patch installation as it is a compliance issue.

Hi ,

Do any one has found a workaround for this? I do came across with such issue and i want to fix it from my side, i build the msp, most of the PC can install it successfully but a win7 PC has failed with the error 2709 while i am sure the component table is right with the component.