A user reports that it takes a long time to boot up in Windows XP and that there are a lot of icons appearing in the right lower side of the Task Bar. Which of the following tools can be used to minimize startup time？ （）

单项选择题Aninternaluserhasdeletedafilenamed，pagefile.sysandisconcernedthisdeletionmayaffectthecomputer.Theusershouldbeinstructedto：（）

A.reboot the computer because Windows automatically generates a new page file.
B.add a new hard drive， format the drive and install Windows.
C.back up all data， reboot the computer and notify a desktop technician.
D.reformat the hard drive and reinstall Windows.

单项选择题AutomaticUpdatesshouldbeperformedtoensurethatthecomputerhasthelatest：（）

A.anti-virus definition file.
B.drivers installed.
C.release of the operating system.
D.security and software patches.