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•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:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage19.
20LenovoM5800UserGuide
- LenovoM5800 1
- UserGuide 1
- FirstEdition(August2013) 2
- ©CopyrightLenovo2013 2
- Contents 3
- Importantsafetyinformation 5
- Powercordsandpoweradapters 6
- Plugsandoutlets 6
- Externaldevices 7
- Heatandproductventilation 7
- Operatingenvironment 8
- Modemsafetyinformation 8
- Lasercompliancestatement 8
- Powersupplystatement 9
- LenovoM5800UserGuide 10
- Chapter1.Productoverview 11
- 2LenovoM5800UserGuide 12
- 4LenovoM5800UserGuide 14
- Locatingpartsonthesystemboard 15
- 6LenovoM5800UserGuide 16
- Chapter2.Youandyourcomputer 17
- Glareandlighting 18
- Aircirculation 18
- Voltage-selectionswitch 19
- Replacementpowercords 19
- 10LenovoM5800UserGuide 20
- Chapter3.Security 21
- Usingpasswords 22
- BIOSpasswords 22
- Windowspasswords 23
- Usingandunderstandingrewalls 23
- 14LenovoM5800UserGuide 24
- Chapter4.Recoveryinformation 25
- UsingRescueSystem 26
- 18LenovoM5800UserGuide 28
- Viewingandchangingsettings 29
- Passwordconsiderations 30
- Power-OnPassword 30
- AdministratorPassword 30
- HardDiskPassword 30
- Enablingordisablingadevice 31
- Selectingastartupdevice 31
- EnablingErPcompliancemode 32
- ICEperformancemode 32
- ICEthermalalert 33
- ExitingtheSetupUtilityprogram 33
- 24LenovoM5800UserGuide 34
- Chapter6.Preventingproblems 35
- Cleaningandmaintenance 36
- Cleaningyourcomputer 36
- Goodmaintenancepractices 37
- Movingyourcomputer 38
- Basictroubleshooting 39
- Troubleshootingprocedure 40
- Troubleshooting 40
- Audioproblems 41
- CDproblems 42
- DVDproblems 43
- Intermittentproblems 44
- Monitorproblems 45
- Networkingproblems 47
- Performanceandlockupproblems 49
- Printerproblems 51
- Serialportproblems 51
- USBproblems 52
- AppendixA.Notices 53
- Trademarks 54
- Exportclassicationnotice 55
- Electronicemissionsnotices 55
- Eurasiancompliancemark 57
- 48LenovoM5800UserGuide 58
- ImportantWEEEinformation 59
- RecyclinginformationforJapan 59
- RecyclinginformationforBrazil 60
- 52LenovoM5800UserGuide 62
- EuropeanUnionRoHS 63
- ChinaRoHS 63
- TurkishRoHS 63
- UkraineRoHS 64
- IndiaRoHS 64
- AppendixE.ChinaEnergyLabel 65
- 56LenovoM5800UserGuide 66
- 58LenovoM5800UserGuide 68
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