This problem only appears to occur on Windows XP machines." In an update, the company said the crashes were limited to XP machines running Endpoint Protection 12.1 and certain software from Norton.
Once the cause was identified, Symantec issued a rollback of signatures on Thursday, the company said.
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Should I use one of the all-in-one packages that claim to do everything? Windows Defender comes pre-installed in recent versions of Windows. It’s the same as Windows Defender, except it’s not pre-installed.
"This whole episode is a joke, had the issue been a conflict with a random device driver then I could maybe slightly more sympathetic," the customer said. " While some on the discussion board said Symantec was working to compensate customers "for the hours of lost worker production and the time and effort taken by IT staffs to rectify this huge error by Symantec," that apparently is not the case.
"But for it to conflict with its own Symantec related drivers and cause this issue is a total farce. "Although we are not providing compensation packages, we are working around the clock to provide information on remediation and technical support to help customers address this issue," Symantec spokesperson Ellen Hayes told CNET.
We are experiencing significant reduction in file transfer rate and network speed with in our LAN between Virtual Machines running Windows 7 and Windows Server 2008 R2 guest OSs, Symantec Endpoint Protection (SEP) installed is 12.1.2015.2015.