Kindly checked folowing step.
Log in to user machine
Click on Start button -> Run -> SMC –stop Than Press Enter
You will get one window asking for entering password. So enter the given password
Now click on start button -> run -> regedit than enter
Go to below path
HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Symantec Endpoint Protection\SMC\SYLINK\SyLink
See HardwareID at right hand side and Right click on HardwareID and delete
Close current window
1. GO to My computer -> C:\Program Files\Common Files\Symantec Shared\HWID
2. Delete the File “ sephwid “
3. Close this window
4. Click on Start button -> Run -> SMC –start Than Press Enter
5. Make sure you can see Symantec Symbol (with green round mark on it) at right hand side at
the bottom of screen.
6. Restart Machine and make sure step 6 is fulfilling.