To put it simply, many software developers write their programs using the C++ programming language. Rather than building the code that handles standard functions (like printing text or opening files) directly into every single application, they rely on standard libraries provided by Microsoft.
Don’t manually uninstall Visual C++ redistributables unless you are absolutely sure no software uses them. Many programs rely on specific versions. If you’re troubleshooting, (not remove) via Control Panel → Programs → right-click the redistributable → Change → Repair. To put it simply, many software developers write
If you try to install the package and receive an error saying a newer version is already installed, don't worry! This is actually good news. It means Windows 10 has already updated your system with a newer runtime library that covers what you need. The program failing to run might have a different issue, or you may need to repair the existing installation via the Windows Settings > Apps menu. Many programs rely on specific versions
It is perfectly safe (and recommended) to install both the x86 and x64 versions to ensure maximum compatibility with all software. This is actually good news