User Disable Component is Mulfunctioning

Last two days i when from my office and every user was fine active and online and every thing is ok, but the next day one of the clients told me his pc is going slow so when i checked his symantic status was fine, but when i came to the Symantic manager its online and the auto protection is enable and firewall is enable and Tamper is enable but every thing other starting from Sonar , Network Prevention, Browser Prevention IE, Firefox is all saying Component is Mulfunctioning,

How can i enable and fix the  Component is Mulfunctioning ?

Thanks