How many version Visual Studio 2008 x64 Redistributables are necessary?

There are 4 versions of this or x86 on my computer How many can I delete?

Hello Richard,
It is to keep you informed that all the version of the C++ distributable's are required, because requirement for the redistributables might vary depending on the program's.
Thank you.

CCCleaner shows four versions of Visual Studio 2008, 2010, 2012 x64 Redistributables & 2012 x86 each taking up about 10+MB and I was just wondering if they are all necessary for AVG to run or are some of them leftovers that weren't deleted when a newer version was installed?  Thank you

Hi Richard,
We apologize. Unfortunately, from your recent e-mail, it was not clear to us how we can help you. Could you please specify the issue that you are facing with AVG and provide us with more details?
Thank you for understanding. We look forward to hearing from you soon.

Hi Richard,
We apologize. Unfortunately, from your recent e-mail, it was not clear to us how we can help you. Could you please specify the issue that you are facing with AVG and provide us with more details?
Thank you for understanding. We look forward to hearing from you soon.