I came across this error at a customer site while installing the latest update rollup for Exchange Server 2010. Though I have seen this error before, I forgot to share it and hence posting it now.
“Setup Wizard for Update Rollup 4 for Exchange Server 2010 (KB982639) ended prematurely because of an error. Your system has not been modified. To install this program at a later time, please run the installation again.”
Looking at the “installed updates” indicates that the update rollup 4 has been installed properly.
Being curious, I checked the version in the properties of Exsetup.exe in the Bin folder. It shows the file version as 14.0.702.0, whereas a successful installation of update rollup 4 shows 14.0.702.1.
It looks like the setup has gone someway, making changes before giving up, showing the error message above.
The problem is that the server had “User Access Control” turned on, which is recommended. One way of installing the update successfully is to turn off UAC for the period of installation. I would recommend to keep the UAC turned on. So, how can we successfully install the update without the error message above? Right clicking the file with “shift” key pressed doesn’t bring an option to “Run as administrator”.
The solution is to open a command prompt with “Run as administrator” option and run the update rollup file, which will give the setup the necessary permission to install the update rollup successfully.