找考题网-背景图
多项选择题

Which of the following would be the BEST safety measure to take before installing a Windows service pack?()

A.Back up all important documents. 
B.Set a System Restore point. 
C.Note the BIOS settings in case a reset is needed. 
D.Back up the drivers for the computer in case re-installation is needed. 
E.Uninstall the previous service pack.