Symantec endpoint protection manager 11 x not updating virus definitions

Once i start "security Task Monitor", Norton finished update and cc Svc disapear. cc Svc causes very high CPU usage, but (according to Symantec support) can't be disabled without complete uninstall, their Norton Removal Tool and Norton Remove and Reinstall Tool both fail to uninstall their application.

Don't know whether it is Norton's process or malware process. c/programfilesx86/nortoninternetsecurity/engine/18.0.0.1.28/ccsvchst.exe*86, countersignatures disappear on clicking. I am long-time NIS 2011 user (yeah, real stupid of me).

Maybe it was a coincidence but it seems to have worked for me.

Thanks Philip, the thing has been killing my machine.

It appears to be machine configuration dependent, as I'm running Norton Internet security 2012 on three machines, on old desktop and laptop everything is good, on my I7 950, forget it. Would remove/replace it, but if I do Comcast will complain or shut me out.But they clearly don't have a clue how to fix the 100% CPU problem. Ridiculous that this has been causing problems for people for YEARS and YEARS but they do nothing!just installed Norton and downloading update, than cc Svc Hst use high % of CPU(ther are two copies of cc Svc in the resources monitor), everything became very slow, open windows/browser very slow even mouse movement also slow.If you want a detailed security rating about your (and all other running background processes) read the following user opinions, and download the free trial version of Security Task Manager.Any malware can be named anything - so you should check where the files of the running processes are located on your disk.

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