Currently we have the msi tag which (according to the description) is supposed to be used for tagging questions about Windows .msi installer files. However, there are quite a few questions (about a third) where people have used the tag because they are asking about issues relating to MSI hardware. Most of the questions about MSI hardware are a few years old so I'm guessing the tag's description was edited at some point.
My thought is that maybe we should have an msi tag for questions about MSI products and a tag called msi-file or msi-installer or something similar for questions about MSI installers? Or we could just remove the msi tag from the questions about hardware.