Hi,
Thank you for posting in Symantec community.
Either create a file & folder exception or specify the action that Symantec Endpoint Protection takes when it makes a detection on Windows computers. You can change the default setting to avoid deletion of any file.
Changing the action that Symantec Endpoint Protection takes when it makes a detection
http://www.symantec.com/docs/HOWTO55248
Excluding a file or a folder from scans
http://www.symantec.com/docs/HOWTO80920