Windows Update KB2918614 may break Windows Installer Service
When you see that error upon trying to install or update AutoQuotes on your Windows machine, chances are that it is caused by a Windows Security update that you need to uninstall.
All you have to do is remove the Windows update KB2918614.
1) Open the control panel, then click Windows Update.
2) Click View Update History and then Installed Updates.
3) Search for KB2918614 and uninstall.
4) This step is optional but recommended, hide that update so you don’t get it installed later on again.