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•MovethedatatotheRecycleBin,andthenemptytheRecycleBin.
•Deletethedata.
•Formatyourharddiskdriveorsolid-statedrive,usingthesoftwareforinitializingit.
•UsetherecoveryprogramprovidedbyLenovotobringtheharddiskdriveorsolid-statedrivebackto
thefactorydefaultsettings.
Theseoperations,however,onlychangethefilelocationofthedata;theydonotdeletethedataitself.In
otherwords,thedataretrievalprocessingisdisabledunderanoperatingsystemsuchasWindows.The
dataisstillthere,eventhoughitseemstobelost.Thus,itissometimespossibletoreadthedatabyuseof
specialsoftwarefordatarecovery.Thereisariskthatpeopleofbadfaithmightreadandmisusethecritical
dataonharddiskdrivesorsolid-statedrivesforunexpectedpurposes.
Topreventleakageofdata,itisimportantthatyoudeleteallthedatafromtheharddiskdriveorsolid-state
drivewhenyoudisposeof,sell,orhandoveryourcomputer.Youcandestroythedataphysicallyby
smashingtheharddiskdrivewithahammer,ormagneticallybymeansofstrongmagneticpower,thus
makingthedataunreadable.Butitisrecommendedthatyouusethesoftware(payware)orservice(pay
service)developedforthatpurpose.Theprocessmighttakeseveralhours.
Fordisposingofdataonthesolid-statedrive,LenovoprovidestheDriveEraseUtilityforResettingthe
CryptographicKeyandErasingtheSolidStateDrivetool.Fordisposingofdataontheharddiskdrive,
LenovoprovidestheSecureDataDisposal™tool.
IfaDiskEncryptionharddiskdriveoranEncryptionsolid-statedriveissupportedandinstalledinyour
computer,youcanlogicallydisposeofallthedataonthedriveinashorttimebyerasingthecryptographic
key.Thedataencryptedwiththeoldkeyisnotphysicallyerasedbutremainsonthedrive;however,itcannot
bedecryptedwithouttheoldkey.ThisfeatureisalsoavailablewiththeDriveEraseUtilityforResetting
theCryptographicKeyandErasingtheSolidStateDrivetool.Gotohttp://www.lenovo.com/supportto
downloadthesetools.
Usingfirewalls
Ifyoursystemispreinstalledwithafirewallprogram,itprotectsagainstcomputerInternetsecuritythreats,
unauthorizedaccesses,intrusions,andInternetattacks.Italsoprotectsyourprivacy.
Formoreinformationabouthowtousethefirewallprogram,refertothehelpinformationsystemthat
comeswiththeprogram.
Protectingdataagainstviruses
Yourcomputerispreinstalledwithanantivirusprogramsoyoucandetectandeliminateviruses.The
antivirusprogramisdesignedtohelpyoudetectandeliminateviruses.
Lenovoprovidesafullversionofantivirussoftwareonyourcomputerwithafree30-daysubscription.After
30days,youmustrenewthelicensetocontinuereceivingtheantivirussoftwareupdates.
Formoreinformationabouthowtouseyourantivirussoftware,refertothehelpinformationsystemof
yourantivirussoftware.
Chapter4.Security55
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