Vs-preclean-vs.exe -

In large solutions (e.g., Chromium, Unreal Engine, tens of thousands of files), vs-preclean-vs.exe is negligible – often completing in < 0.5 seconds. However, if you have extremely slow disk I/O (e.g., a network drive or an external HDD), the file enumeration phase can take several seconds.

: Open the Visual Studio Installer from your Start menu and select Repair on your installed version. vs-preclean-vs.exe