Requiring source packages during installation, repairs, and even uninstall are common occurrences for some customers. The core issue is that Windows Installer needs the source location of the package and its files to install – and can’t find them automatically – when attempting to restore the machine to the state it should be in (according to that package and any patches applied to it). When the W
![How Visual Studio 2012 Avoids Prompts for Source](https://cdn-ak-scissors.b.st-hatena.com/image/square/43952f677ede14122922428a8ab9ab5da59a3583/height=288;version=1;width=512/https%3A%2F%2Fdevblogs.microsoft.com%2Fsetup%2Fwp-content%2Fuploads%2Fsites%2F13%2F2018%2F08%2Fvsfeaturemed.png)