Server 2008 hangs opening files on network shares

Server 2008 Standard r2 - When opening XLSX files, Excel and Explorer hangs as the file is opening.
As the file is opening, in the Windows Explorer window, the address bar shows a
progress bar VERY slowly.When the address bar progress is complete, the system and excel are OK.
This does not occur with administrators, and the affected users have full access to the
network share through both sharing and NTFS security.  
It looks like Windows Explorer is refreshing the window whenever we open a file, and it takes 30+ seconds,
even in a folder with 2 small files in it.

dartosAsked:
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evilsiConnect With a Mentor Commented:
Hi,

As a starting point have you tried placing .xlsx entensions on the exception list in your antivirus and see if the slow access is still present.

Regards
simon
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Darius GhassemCommented:
If you are running Symantec Endpoint please remove the AV for testing.

Make sure Excel and Windows 2008 server is fully updated.
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dartosAuthor Commented:
Symantec AV 10.2.2000 Added extensions to exclusions and now users open files without delay.
Thank You!!
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