I've run into this situation a few times, and I can share that installing the Microsoft Visual C++ 2008 Redistributable on Windows 10 x64 typically doesn't cause any conflicts or issues. These redistributables are designed to coexist with other versions on your system since different applications may require different versions to function properly.
When you install the 2008 version, it shouldn't interfere with newer redistributables already present. They each have their own separate libraries and runtime components. It's always a good notion to download the official package from Microsoft's website to ensure it's up-to-date with the latest security patches.
If you encounter any problems, they usually stem from specific software configurations rather than the presence of multiple redistributables. As a best practice, make sure your system is fully updated through Windows Update before installation. This can sometimes resolve compatibility issues preemptively.
In case any unexpected behavior arises post-installation (though unlikely), you can easily uninstall it from "Programs and Features" in your Control Panel. Hope this helps!