Cleanmem.exe/Conhost.exe process blocked by Norton

Nort.PNG   As you can see by the subject history these 2 are in my history and recent history as trying to acess process data and it's been blocked. i really don't understand this setting and what is being blocked. I hope it's not my program cleanmem or OpenDNS. Are these processes that are being blocked by Norton or is the program being blocked or acess to the program? I think someone has told me not to worry about these history settings but I like to know what this means if that's ok with anyone in the know.