The most common cause is a "botched" installation. If the installation process was interrupted by a power outage, a crash, or antivirus interference, the crlplatform.dll file may not have been copied to the correct directory.
This comprehensive guide will dissect everything you need to know about crlplatform.dll : its legitimate purpose, why errors occur, how to fix them, and how to distinguish the genuine Microsoft file from malware disguising itself with this name. crlplatform.dll