Error 0x80070643: Failed to install MSI package

I am using WiX 3.6 to create my application setup. I have bundled two MSI packages in one bootstrapper, and everything is fine until I install the bootstrapper on a Windows7 PC. The setup works fine on a Windows XP machine.

After installation starts in Windows 7 it rolls back the setup and throws...

Setup Failed

One or more issues caused the setup to fail. Please fix the issues and then retry setup. For more information see the log file.

0x80070643 - Fatal error during installation.

and in the log file error message is..

Error 0x80070643: Failed to install MSI package.
Error 0x80070643: Failed to configure per-user MSI package.

How do I get rid of this error?

This seems to be a bug in the WiX toolset. It is described in #2677 Start Burn with activated UAC -> insufficient privileges.