Runtime Error r6034 is an error caused by the "C Runtime Library" on your PC. This library is what Windows uses to help it call the various functions and features that programs written in the "C" programming language needs to run. Each application on your PC is written in a certain programming language, and because each language is different, Windows needs to be able to call all the functions that each language need; and it does this with "runtime libraries". Unfortunately, the C Runtime Library will either be damaged or corrupt, leading Windows to show the Runtime r6034 error.
This error normally shows like this:
An application has made an attempt to load the C runtime library incorrectly. Please contact the application's support team for more information
The first thing you should do is to make sure that your computer has the latest updates in what concerns the software system. Mostly, you should look towards having the latest Windows updates installed. After that you should test again and see if you get the error by attempting to do the same thing that caused it last time. There is a very large chance that this fixes the problem.
In addition, you should clean the registry by using a special registry cleaning program. The registry holds the settings of all your programs, and is often the cause of errors like the Runtime error r6034, and so it needs to be kept well maintained. The only way to clean this sector properly is to use a tool to do the job, as manually doing so would take many hours and is therefore impractical. You will need to download such a tool.