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Valutato. / 5. Basato su recensioni clienti
•Power-OnPassword
•AdministratorPassword
•HardDiskPassword
Youdonothavetosetanypasswordstouseyourcomputer.However,usingpasswordsimproves
computingsecurity.Ifyoudecidetosetanypasswords,readthefollowingsections.
Passwordconsiderations
Apasswordcanbeanycombinationofupto64alphabeticandnumericcharacters.Forsecurityreasons,it
isrecommendedtouseastrongpasswordthatcannotbeeasilycompromised.Tosetastrongpassword,
usethefollowingguidelines:
•Haveatleasteightcharactersinlength
•Containatleastonealphabeticcharacterandonenumericcharacter
•SetupUtilityprogramandharddiskpasswordsarenotcasesensitive
•Notbeyournameoryourusername
•Notbeacommonwordoracommonname
•Besignicantlydifferentfromyourpreviouspasswords
Power-OnPassword
WhenaPower-OnPasswordisset,youarepromptedtotypeavalidpasswordeachtimethecomputeris
turnedon.Thecomputercannotbeuseduntilthevalidpasswordistypedin.
AdministratorPassword
SettinganAdministratorPassworddetersunauthorizedusersfromchangingcongurationsettings.Ifyou
areresponsibleformaintainingthecongurationsettingsofseveralcomputers,youmightwanttosetan
AdministratorPassword.
WhenanAdministratorPasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutryto
accesstheSetupUtilityprogram.TheSetupUtilityprogramcannotbeaccesseduntilavalidpassword
istypedin.
IfboththePower-OnPasswordandAdministratorPasswordareset,youcantypeeitherpassword.However,
youmustuseyourAdministratorPasswordtochangeanycongurationsettings.
HardDiskPassword
SettingaHardDiskPasswordpreventsunauthorizedaccesstothedataontheharddiskdrive.Whena
HardDiskPasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutrytoaccessthe
harddiskdrive.
Notes:
•AfteryousetaHardDiskPassword,yourdataontheharddiskdriveisprotectedeveniftheharddisk
driveisremovedfromonecomputerandinstalledinanother.
•IftheHardDiskPasswordisforgotten,thereisnowaytoresetthepasswordorrecoverdatafromthe
harddiskdrive.
Setting,changing,anddeletingapassword
Toset,change,ordeleteapassword,dothefollowing:
82ThinkCentreM73UserGuide
- ThinkCentreM73 1
- UserGuide 1
- SecondEdition(September2013) 2
- Contents 3
- Importantsafetyinformation 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Heatandproductventilation 9
- Operatingenvironment 10
- Modemsafetyinformation 10
- Lasercompliancestatement 11
- Powersupplystatement 11
- Chapter1.Productoverview 13
- Chapter1.Productoverview3 15
- Specications 17
- Lenovoprograms 17
- Chapter1.Productoverview7 19
- Locations 21
- 10ThinkCentreM73UserGuide 22
- .Productoverview11 23
- Locatingcomponents 24
- Locatingpartsonthesystemboard 24
- .Productoverview13 25
- Locatinginternaldrives 26
- Machinetypeandmodellabel 27
- 16ThinkCentreM73UserGuide 28
- Chapter2.Usingyourcomputer 29
- NavigatingonWindows8 30
- NavigatingonWindows8.1 31
- Usingthekeyboard 33
- UsingWindowsshortcutkeys 33
- Usingangerprintreader 33
- Usingthewheelmouse 34
- Adjustingaudio 34
- Aboutyourcomputeraudio 34
- UsingCDsandDVDs 35
- PlayingaCDorDVD 36
- RecordingaCDorDVD 36
- Chapter2.Usingyourcomputer25 37
- 26ThinkCentreM73UserGuide 38
- Chapter3.Youandyourcomputer 39
- Glareandlighting 40
- Aircirculation 40
- Registeringyourcomputer 41
- Voltage-selectionswitch 41
- Replacementpowercords 42
- Chapter4.Security 43
- Lockingthecomputercover 44
- Usingpasswords 45
- BIOSpasswords 45
- Windowspasswords 46
- Conguringthengerprintreader 46
- Usingandunderstandingrewalls 46
- Protectingdataagainstviruses 46
- .Security35 47
- 36ThinkCentreM73UserGuide 48
- Installingorreplacinghardware 49
- Installingexternaloptions 49
- Removingthecomputercover 50
- Attention: 51
- 1asshownto 54
- Replacingthebattery 59
- Replacingthemicroprocessor 63
- Installingthesolid-statedrive 66
- 56ThinkCentreM73UserGuide 68
- Replacingtherearfanassembly 69
- ReplacingtheWiFiunits 72
- RemovingtheWiFiadaptercard 73
- RemovingtheWiFicardmodule 74
- InstallingtheWiFiunits 75
- 64ThinkCentreM73UserGuide 76
- InstallingtherearWiFiantenna 78
- RemovingtherearWiFiantenna 78
- InstallingthefrontWiFiantenna 79
- Replacingthekeyboard 81
- Replacingthemouse 82
- Completingthepartsreplacement 83
- Obtainingdevicedrivers 84
- Chapter6.Recoveryinformation 85
- Creatingrecoverymedia 86
- Usingrecoverymedia 86
- Performingabackupoperation 86
- Performingarecoveryoperation 87
- Creatingandusingarescuemedium 88
- Reinstallingsoftwareprograms 90
- Reinstallingdevicedrivers 90
- Solvingrecoveryproblems 90
- Refreshingyourcomputer 91
- Viewingandchangingsettings 93
- Passwordconsiderations 94
- Power-OnPassword 94
- AdministratorPassword 94
- HardDiskPassword 94
- Enablingordisablingadevice 95
- Selectingastartupdevice 96
- EnablingErPcompliancemode 96
- ICEperformancemode 97
- ICEthermalalert 97
- Usingsystemprograms 99
- ThinkCentreM73UserGuide 100
- Chapter9.Preventingproblems 101
- UsingSystemUpdate 102
- Cleaningandmaintenance 102
- Cleaningyourcomputer 103
- Goodmaintenancepractices 104
- Movingyourcomputer 104
- Basictroubleshooting 105
- Troubleshootingprocedure 106
- Troubleshooting 106
- Audioproblems 107
- CDproblems 108
- DVDproblems 109
- DVDmoviewillnotplay 110
- Playbackisverysloworchoppy 110
- Intermittentproblems 111
- Monitorproblems 113
- Theimageappearstobeickering 114
- Theimageisdiscolored 114
- Networkingproblems 115
- AwirelessLANproblem 116
- Optionproblems 117
- Performanceandlockupproblems 118
- Printerproblems 120
- Serialconnectorproblems 120
- Softwareproblems 121
- USBproblems 122
- LenovoSolutionCenter 122
- ©CopyrightLenovo2013 123
- LenovoSupportWebsite 124
- Helpandservice 124
- Callingforservice 124
- Usingotherservices 125
- Purchasingadditionalservices 125
- 114ThinkCentreM73UserGuide 126
- AppendixA.Notices 127
- Trademarks 128
- Exportclassicationnotice 129
- Televisionoutputnotice 129
- Electronicemissionsnotices 129
- Eurasiancompliancemark 131
- 120ThinkCentreM73UserGuide 132
- ImportantWEEEinformation 133
- RecyclinginformationforJapan 133
- RecyclinginformationforBrazil 134
- 124ThinkCentreM73UserGuide 136
- EuropeanUnionRoHS 137
- ChinaRoHS 137
- TurkishRoHS 137
- UkraineRoHS 138
- IndiaRoHS 138
- AppendixE.ChinaEnergyLabel 139
- 128ThinkCentreM73UserGuide 140
- 130ThinkCentreM73UserGuide 142
- 132ThinkCentreM73UserGuide 144
- 134ThinkCentreM73UserGuide 146
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