What is the Core Sync Process displayed during Win7 boot?

On a windows 7 desktop the administrator account is ok.  But when logging onto my user account I receive the following pop up message:

Core Sync Center Stopped working.    

It is repeated about 10 times.  When I erase the 10 windows, my internet browser and general access is not working.

I scanned with Norton in my admin account and Norton virus scan found no problems.
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Howie KaySystems Engineer Lockheed-RetiredAsked:
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noxchoGlobal Support CoordinatorCommented:
http://windows.microsoft.com/en-us/windows7/what-is-sync-center Here is explained what Sync Center is. Why is it crashing in your case, this is a good question. Have you run chkdsk on system partition?
You can do also sfcscannow.

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Howie KaySystems Engineer Lockheed-RetiredAuthor Commented:
It is interesting that it is happening in my guest/user account and not in my Admin account.  Maybe the quickest solution is to delete the quest/user account and create a new user account.   Maybe the user account setup has been damaged?
noxchoGlobal Support CoordinatorCommented:
You can confirm your idea only by testing it. Delete it and create new one.
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Windows 7

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