"Class not registered Windows 10" is one of the most searched user queries by Windows 10 users.
The major chunk of Windows coding is done in c++ and classes are the prominent part of C, we all know that, isn't it? If we install any program or application on Windows 10 operating system, the c classes associated with that program also gets installed.
https://www.updateland.com/class-not-registered-windows-10/