Hi,

am facing almost the same problem as Stephan.

Need to migrate an SBS to Win16 and Exchange 16.

The existing system had last seen an update in 2015.

So first I updated the server and then I wanted to install UR29.

However, the installation runs through WITHOUT errors and is completed at the end.

Excerpt from the log:
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MSI (c) (C4:30) [15:39:30:529]: Product: Microsoft Exchange Server -- Configuration completed successfully.
MSI (c) (C4:30) [15:39:30:529]: Windows Installer reconfigured the product. Product Name: Microsoft Exchange Server. Product Version: 14.3.123.4. Product Language: 1033. Manufacturer: Microsoft Corporation. Reconfiguration success or error status: 0.
MSI (c) (C4:30) [15:39:30:544]: Grabbed execution mutex.

################

But the version remains at: 14.3 (Build 123.4)
(In the PowerShell and EMC)

I then searched for an "earlier" UR. UR11 would be enough.
( https://support.microsoft.com/en-us/help/3078674/update-rollup-11-for-exchange-server-2010-service-pack-3 )
File downloaded. It also has a different size than UR29 - But when I start it, it also says UR29 - Strange!

Any idea how I can get the system to the required level for migration?

Worst case, I would have to do the step via Exchange 2013. But I have no desire to do that! :-)

the log file of the installation is 14MB in size.
I have "skimmed" them: - But I can't figure it out:

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MSI (c) (C4:AC) [15:34:02:862]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:AC) [15:34:02:862]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:862]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:862]: Note: 1: 2262 2: Error 3: -2147287038
DEBUG: Error 2826: Control BannerLine on dialog ProgressDlg extends beyond the boundaries of the dialog to the right by 5 pixels
The installer encountered an unexpected error while installing this package. This may indicate a problem with this package. The error code is 2826. The arguments are: ProgressDlg, BannerLine, to the right
MSI (c) (C4:AC) [15:34:02:862]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:AC) [15:34:02:862]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:862]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:862]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:AC) [15:34:02:878]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:878]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:878]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:AC) [15:34:02:878]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:878]: Transforming table Error.

MSI (c) (C4:AC) [15:34:02:878]: Note: 1: 2262 2: Error 3: -2147287038
DEBUG: Error 2826: Control BottomLine on dialog ProgressDlg extends beyond the boundaries of the dialog to the right by 5 pixels
The installer encountered an unexpected error while installing this package. This may indicate a problem with this package. The error code is 2826. The arguments are: ProgressDlg, BottomLine, to the right
MSI (c) (C4:30) [15:34:02:878]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:30) [15:34:02:878]: Transforming table Error.

MSI (c) (C4:30) [15:34:02:878]: Transforming table Error.

MSI (c) (C4:30) [15:34:02:878]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:30) [15:34:02:893]: Transforming table Error.

MSI (c) (C4:30) [15:34:02:893]: Transforming table Error.

MSI (c) (C4:30) [15:34:02:893]: Note: 1: 2262 2: Error 3: -2147287038
MSI (c) (C4:30) [15:34:02:893]: Transforming table Error.

MSI (c) (C4:30) [15:34:02:893]: Transforming table Error.

MSI (c) (C4:30) [15:34:02:893]: Note: 1: 2262 2: Error 3: -2147287038
DEBUG: Error 2726: Action not found: PreNgenEndDlg
The installer encountered an unexpected error while installing this package. This may indicate a problem with this package. The error code is 2726. The arguments are: PreNgenEndDlg, ,
Action ended 15:34:02: PreNgenEndDlg. Return value 0.
MSI (c) (C4:30) [15:34:02:893]: Doing action: ExecuteAction
Action start 15:34:02: ExecuteAction.
MSI (c) (C4:30) [15:34:02:893]: PROPERTY CHANGE: Adding SECONDSEQUENCE property. Its value is '1'

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Looking forward to your feedback....