Windows 7 and Windows Installer Error “Another installation is in progress”
All morning long I’ve been battling my Windows 7 system. I finally found out that the error code which reads: “Error 1500. Another installation is in progress. You must complete that installation before continuing this one.” can be attributed to the InProgress key found in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress After doing a little searching on the web, I found that Microsoft has a program called msizap.exe which can be found in the Windows Installer SDK. The problem with that is that the SDK itself is an .msi file. I didn’t really want to install the full SDK anyway. So I … Continue reading Windows 7 and Windows Installer Error “Another installation is in progress”