Noticeondeletingdatafromyourharddiskdriveorsolidstatedrive
Ascomputersspreadintoeverycorneroflife,theyprocessmoreandmoreinformation.Thedataonyour
computer,someofwhichissensitive,isstoredonastoragedevice,eitheraharddiskdriveorsolidstate
drive.Beforeyoudisposeof,sell,orhandoveryourcomputer,makesuretodeletedatastoredonit.
Handingyourcomputerovertosomeoneelsewithoutdeletingtheloadedsoftware,suchasoperating
systemsandapplicationsoftware,mayevenviolateLicenseAgreements.Youareadvisedtocheckthe
termsandconditionsofthoseAgreements.
Therearemethodsthatseemtodeletethedata:
•Movethedatatotherecyclebin,andthenchoosetheEmptyrecyclebincommand.
•UsetheDeletecommand.
•Formatyourharddiskdriveorsolidstatedrive,usingthesoftwareforinitializingit.
•Usingtherecoveryprogram,providedbyLenovo,bringtheharddiskdriveorthesolidstatedriveback
tofactory-shipstate.
Theseoperations,however,onlychangetheleallocationofthedata;theydonotdeletethedataitself.In
otherwords,thedataretrievalprocessingisdisabledunderanoperatingsystemsuchasWindows.The
dataisstillthere,eventhoughitseemstobelost.Thus,itissometimespossibletoreadthedatabyuseof
specialsoftwarefordatarecovery.Thereisariskthatpeopleofbadfaithmayreadandmisusethecritical
dataonharddiskdrivesorsolidstat edrivesforune xpectedpurposes.
Topreventleakageofdata,itbecomesveryimportantthatyoutakeresponsibilityfordeletingallthedata
fromtheharddiskdriveorsolidstatedrivewhenyoudisposeof,sell,orhandoveryourcomputer.Youcan
destroythedataphysicallybysmashingtheharddiskdrivewithahammer,ormagneticallybymeansof
strongmagneticpower,thusmakingthedataunreadable.Butwerecommendthatyoumakeuseofthe
software(payware)orservice(payservice)specicallydevelopedforthepurpose.
Fordisposingofdataontheharddiskdrive,Lenovopr ovidestheSecureDataDisposaltool.Todownload
thetool,got otheLenovoW ebsiteathttp://support.lenovo.com.
Note:Runningtheapplicationwilltakeacoupleofhours.
IfEncryptionsolidstatedriveorDiskEncryptionharddiskdriveissupportedandinstalledinyourcomputer,
youcanlogicallydisposeofallthedataonadeviceinaveryshorttimebyerasingthecryptographickey.
Thedataencryptedwiththeoldkeyisnotphysicallyer asedbutremainsonthedisk;however ,itcannotbe
decryptedwithouttheoldkey.ThisfeatureisenabledbytheThinkPadSetupMenuExtensionUtilityandis
availableasamenuitemintheThinkPadSetup.
Usingandunderstandingrewalls
Ifyoursystemispreintalledwitharewallprogram,itprotectsagainstcomputerInternetsecuritythreats,
unauthorizedaccess,intrusions,andInternetattacks.Italsoprotectsyourprivacy.
Formoreinformationabouthowtousetherewallprogram,refertotheon-linehelpthatcomeswith
theprogram.
Protectingdataagainstviruses
Yourcomputerispreinstalledwithanantiviruspr ogramsoyoucandetectandeliminateviruses.The
antivirusprogramisdesignedtohelpyoudetectandeliminateviruses.
Chapter4.Security109