I did test uninstalling Atlantis several times in the last few days. More than I have ever done, and probably will ever do. I never got access violations except when I had altered the file properties of "awp.exe" so that it was “compressed” by Windows to spare disk space. I repeatedly installed and uninstalled Atlantis with and without file compression of "awp.exe" several times. Access violations only happened when "awp.exe" was compressed by Windows.No, I do not have file compression on any of my installs or systems. And I doubt that file compression is the actual cause of the occurrence of that error on your end, either -- for this is how elusive it is acting every time... Coincidence does not equal cause.
As a rule-of-thumb, "correlation might not equal causation", but in my case, the cause of the access violations from Atlantis was definitely the compressed state of its executable. I never got access violations uninstalling Atlantis when "awp.exe" was in its original uncompressed state. There was nothing elusive about it at all! Nothing that could be misconstrued as "elusive"!