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•Power-OnPassword
•AdministratorPassword
•HardDiskPassword
Youdonothavetosetanypasswordstouseyourcomputer.However,usingpasswordsimproves
computingsecurity.Ifyoudecidetosetanypasswords,readthefollowingsections.
Passwordconsiderations
Apasswordcanbeanycombinationofupto64alphabeticandnumericcharacters.Forsecurityreasons,it
isrecommendedtouseastrongpasswordthatcannotbeeasilycompromised.Tosetastrongpassword,
usethefollowingguidelines:
•Haveatleasteightcharactersinlength
•Containatleastonealphabeticcharacterandonenumericcharacter
•SetupUtilityprogramandharddiskdrivepasswordsarenotcasesensitive
•Notbeyournameoryourusername
•Notbeacommonwordoracommonname
•Besignificantlydifferentfromyourpreviouspasswords
Power-OnPassword
WhenaPower-OnPasswordisset,youarepromptedtotypeavalidpasswordeachtimethecomputeris
turnedon.Thecomputercannotbeuseduntilthevalidpasswordistypedin.
AdministratorPassword
SettinganAdministratorPassworddetersunauthorizedusersfromchangingconfigurationsettings.Ifyou
areresponsibleformaintainingtheconfigurationsettingsofseveralcomputers,youmightwanttosetan
AdministratorPassword.
WhenanAdministratorPasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutryto
accesstheSetupUtilityprogram.TheSetupUtilityprogramcannotbeaccesseduntilavalidpassword
istypedin.
IfboththePower-OnPasswordandAdministratorPasswordareset,youcantypeeitherpassword.However,
youmustuseyourAdministratorPasswordtochangeanyconfigurationsettings.
HardDiskPassword
SettingaHardDiskPasswordpreventsunauthorizedaccesstothedataontheharddiskdrive.Whena
HardDiskPasswordisset,youarepromptedtotypeavalidpasswordeachtimeyoutrytoaccessthe
harddiskdrive.
Notes:
•AfteryousetaHardDiskPassword,yourdataontheharddiskdriveisprotectedeveniftheharddisk
driveisremovedfromonecomputerandinstalledinanother.
•IftheHardDiskPasswordisforgotten,thereisnowaytoresetthepasswordorrecoverdatafromthe
harddiskdrive.
Setting,changing,anddeletingapassword
Toset,change,ordeleteapassword,dothefollowing:
110ThinkCentreM83,M93/pUserGuide
- ThinkCentreM83,M93/p 1
- UserGuide 1
- SecondEdition(January2014) 2
- Contents 3
- Importantsafetyinformation 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Heatandproductventilation 9
- Operatingenvironment 10
- Modemsafetyinformation 10
- Lasercompliancestatement 11
- Powersupplystatement 11
- Cleaningandmaintenance 11
- Chapter1.Productoverview 13
- Chapter1.Productoverview3 15
- Specifications 17
- Lenovoprograms 17
- Chapter1.Productoverview7 19
- Locations 20
- .Productoverview11 23
- Locatingcomponents 24
- Locatingpartsonthesystemboard 25
- .Productoverview15 27
- Locatinginternaldrives 28
- Machinetypeandmodellabel 29
- Chapter2.Usingyourcomputer 31
- NavigatingonWindows8 32
- NavigatingonWindows8.1 33
- Usingthekeyboard 35
- UsingWindowsshortcutkeys 35
- Usingafingerprintreader 35
- Usingthewheelmouse 36
- Adjustingaudio 36
- Aboutyourcomputeraudio 36
- UsingCDsandDVDs 37
- PlayingaCDorDVD 38
- RecordingaCDorDVD 38
- Chapter2.Usingyourcomputer27 39
- Chapter3.Youandyourcomputer 41
- Glareandlighting 42
- Aircirculation 42
- Registeringyourcomputer 43
- Replacementpowercords 43
- Chapter4.Security 45
- Lockingthecomputercover 46
- Chapter4.Security35 47
- Attachingacablelock 48
- BIOSpasswords 48
- Windowspasswords 49
- Configuringthefingerprintreader 49
- Usingandunderstandingfirewalls 49
- Protectingdataagainstviruses 49
- Installingorreplacinghardware 51
- Installingexternaloptions 51
- Removingthecomputercover 52
- Attention: 53
- InstallingorreplacingaPCIcard 54
- 1toopenthecardlatch2 55
- Figure15.RemovingaPCIcard 56
- Figure16.InstallingaPCIcard 57
- Installingthecardreader 62
- Replacingthecardreader 64
- InstallingthefrontUSBassembly 66
- ReplacingthefrontUSBassembly 68
- Replacingthebattery 69
- Replacingthemicroprocessor 74
- 1,pin2,pin3 83
- Installingthesolid-statedrive 86
- Replacingthefrontfanassembly 87
- Replacingtherearfanassembly 89
- Replacingtheinternalspeaker 94
- Replacingthethermalsensor 96
- ReplacingtheWi-Fiunits 100
- RemovingtheWi-Fiadaptercard 101
- 1toopenthePCIcardlatch2 102
- ThinkCentreM83,M93/pUserGuide 102
- RemovingtheWi-Ficardmodule 103
- InstallingtheWi-Fiunits 104
- InstallingtherearWi-Fiantenna 107
- RemovingtherearWi-Fiantenna 108
- RemovingthefrontWi-Fiantenna 110
- Completingthepartsreplacement 111
- Obtainingdevicedrivers 112
- Chapter6.Recoveryinformation 113
- Creatingrecoverymedia 114
- Usingrecoverymedia 114
- Performingabackupoperation 114
- Performingarecoveryoperation 115
- Creatingarescuemedium 116
- Usingarescuemedium 116
- Reinstallingsoftwareprograms 118
- Reinstallingdevicedrivers 118
- Solvingrecoveryproblems 118
- Refreshingyourcomputer 119
- Viewingandchangingsettings 121
- Usingpasswords 121
- Passwordconsiderations 122
- Power-OnPassword 122
- AdministratorPassword 122
- HardDiskPassword 122
- Enablingordisablingadevice 123
- Selectingastartupdevice 124
- EnablingErPcompliancemode 124
- ICEperformancemode 125
- ICEthermalalert 125
- ExitingtheSetupUtilityprogram 126
- Usingsystemprograms 127
- Chapter9.Preventingproblems 129
- UsingSystemUpdate 130
- Computer 131
- Keyboard 131
- Opticalmouse 131
- Displayscreen 131
- Goodmaintenancepractices 132
- Movingyourcomputer 132
- Basictroubleshooting 133
- Troubleshootingprocedure 134
- Troubleshooting 134
- NoaudioinWindows 135
- CDproblems 136
- DVDproblems 137
- DVDmoviewillnotplay 138
- Playbackisverysloworchoppy 138
- Intermittentproblems 139
- Monitorproblems 141
- Theimageappearstobeflickering 142
- Theimageisdiscolored 142
- Ethernetproblems 143
- AwirelessLANproblem 144
- AwirelessWANproblem 145
- Bluetoothproblem 145
- Performanceandlockupproblems 146
- Insufficientmemory 148
- Softwaredoesnotworkasexpected 149
- USBproblems 150
- LenovoSolutionCenter 150
- ©CopyrightLenovo2013,2014 151
- LenovoSupportWebsite 152
- Helpandservice 152
- Callingforservice 152
- Usingotherservices 153
- Purchasingadditionalservices 153
- AppendixA.Notices 155
- Trademarks 156
- Exportclassificationnotice 157
- Electronicemissionsnotices 157
- Eurasiancompliancemark 159
- ImportantWEEEinformation 161
- RecyclinginformationforJapan 161
- RecyclinginformationforBrazil 162
- EuropeanUnionRoHS 165
- ChinaRoHS 165
- TurkishRoHS 165
- UkraineRoHS 166
- IndiaRoHS 166
- AppendixE.ChinaEnergyLabel 167
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