Close all applications.
Uninstall both of these C runtimes from the Control Panel > Add or Remove Programs.
Reboot Computer
Go to Part 5 of the pinned post:
Important Update on a few Potential SketchUp 2017 issues on Windows
and get the help links to reinstall the latest C Runtime and dotNET libraries direct from Microsoft.
(You can also see previously pinned post 2017 not launching.)
Reboot Computer
Reinstall SketchUp 17.2 (by right-clicking installer and choosing “Run as administrator”.)