•Yourfingeriswrinkled.
•Yourfingerisrough,dry,orinjured.
•Yourfingerisstainedwithdirt,mud,oroil.
•Thesurfaceofyourfingerisdifferentfromwhenyouenrolledyourfingerprint.
•Yourfingeriswet.
•Afingerisusedthathasnotbeenenrolled.
Toimprovethesituation,trythefollowing:
•Cleanorwipeyourhandstoremoveanyexcessdirtormoisturefromthefingers.
•Enrollanduseadifferentfingerforauthentication.
•Ifyourhandsaredry,applylotiontothem.
Formoreinformationonhowtousethefingerprintreader,refertothehelpsystemoftheLenovoFingerprint
Managerprogram.
Noticeondeletingdatafromyourharddiskdriveorsolid-statedrive
Someofthedatastoredontheharddiskdriveorsolid-statedrivemightbesensitive.Handingyour
computerovertosomeoneelsewithoutdeletingtheloadedsoftware,suchasoperatingsystemsand
applicationsoftware,mightevenviolatelicenseagreements.Besuretodeletedatastoredontheharddisk
driveorsolid-statedrivebeforeyoudisposeof,sell,orhandoveryourcomputer.
Youcanusethefollowingmethodstodeletedatafromtheharddiskdriveorsolid-statedrive:
•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,itisimportantthatyoudeleteallthedatafromtheharddiskdrivewhenyou
disposeof,sell,orhandoveryourcomputer.Youcandestroythedataphysicallybysmashingtheharddisk
drivewithahammer,ormagneticallybymeansofstrongmagneticpower,thusmakingthedataunreadable.
Butitisrecommendedthatyouusethesoftware(payware)orservice(payservice)developedforthat
purpose.Theprocessmighttakeseveralhours.
Fordisposingofdataonthesolid-statedrive,LenovoprovidestheDriveEraseUtilityforResettingthe
CryptographicKeyandErasingtheSolidStateDrivetool.Fordisposingofdataontheharddiskdrive,Lenovo
providestheSecureDataDisposal™tool.Gotohttp://www.lenovo.com/supporttodownloadthesetools.
IfanEncryptionsolid-statedriveoraDiskEncryptionharddiskdriveissupportedandinstalledinyour
computer,youcanlogicallydisposeofallthedataonthedriveinashorttimebyerasingthecryptographic
key.Thedataencryptedwiththeoldkeyisnotphysicallyerasedbutremainsonthedrive;however,itcannot
bedecryptedwithouttheoldkey.ThisfeatureisalsoavailablewiththeDriveEraseUtilityforResettingthe
CryptographicKeyandErasingtheSolidStateDrivetool.
Chapter4.Security53
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