kar3d7m wrote:Windows 7, 64 bit
In addition to Norton Utilities 16, there is Norton Security Suite (up to date), CCleaner, Glary Utilities 4, Malwarebytes Anti-Malware, and Superantispyware.
Are you using the free versions of Glary Utilities? Does Glary have registry tools?
Are you using the registry cleaning in CCleaner? Or any of the Utilities? It is possible that you are clearing a registry setting with one of the other utilities that is affecting your NU settings.