Troubleshooting a VMM Upgrade
Updated: May 13, 2016
Applies To: System Center 2012 R2 Virtual Machine Manager
For general information about troubleshooting Virtual Machine Manager (VMM), see the System Center 2012 – Virtual Machine Manager (VMM) General Troubleshooting Guide on the TechNet Wiki.
Log files
If there is a problem when you upgrade VMM to System Center 2012 R2, consult the log files that are located in the %SYSTEMDRIVE%\ProgramData\VMMLogs folder. Note that the ProgramData folder is a hidden folder and you might need to change viewing settings to view this folder.
Known issues
The following are known issues with a VMM upgrade to System Center 2012 R2:
If multiple errors occur during upgrade, only the first error encountered is shown in the setup wizard. To see all errors that occurred, see the Log files.
If any upgrade rollup that is earlier than Update Rollup (UR) 4 has been applied to VMM in System Center 2012 SP1, then an attempt to uninstall VMM (in order to upgrade to System Center 2012 R2) from the Windows Control Panel – might fail.
In this case, you can try to uninstall VMM by running the Setup program directly from the products’ installation media. Or, uninstall any Update Rollups that are earlier than UR4, and then try to uninstall VMM again.