When my friend goes to install any software, he generally sees a message saying it is starting the Windows Installer, then a popup appears (attached) from Windows Installer that offers on option other than OK. Clicking OK just makes the popup go away, the install does not continue. I tried the install as administrator, did not help. I tried the compatibility troubleshooter, but it errors out without giving any info.
I've tried running the Microsoft tool that they offer for repairing Windows Installer, it finds nothing. I've also tried unregistering and registering msiexec.exe, did not help. Also ran regsvr32.exe /s %windir%\system32\msi.dll
Any ideas what I might try to fix this?