I accidentally applied an update to Visual Studio, and right now have installed version 15.9. However, I'd like to downgrade to version 15.7. How can I do this?
I have already tried uninstalling and reinstalling, but perhaps my uninstall wasn't clean because immediately upon reinstall, the VS version jumped back to 15.9.
To install specific older updates of Visual C++ 2017, you need to use the right additional parameters. See Microsoft Docs.
Note if you specifically just wanted to use an older version the compiler toolset (the C++ 15.7 compiler) you can do that with the VS 2017 (15.9) IDE installed. See this blog post.