SymptomAction
Theoperatingsystemdoesnot
start.
Verifythat:
•Thestartupsequenceincludesthedevicewheretheoperatingsystemresides.
Usually,theoperatingsystemisontheharddiskdrive.F ormoreinformation,
see“Selectingastartupdevice”onpage84.
Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.
Verifythatnokeysar estuck.
Troubleshootingprocedure
Usethefollowingprocedureasastartingpointfordiagnosingpr oblemsyouareexperiencingwithyour
computer:
1.Verifythatthecablesforallattacheddevicesareconnectedcorrectlyandsecurely.
2.Verifythatallattacheddevicesthatrequir eacpowerareconnectedtoproperlygrounded,functioning
electricaloutlets.
3.VerifythatallattacheddevicesareenabledintheBIOSsettingsofyourcomputer.Formoreinformation
aboutaccessingandchangingtheBIOSsettings,r efertoyourChapter7“UsingtheSetupUtility
program”onpage81.
4.Gotothe“T roubleshooting”onpage96andfollowtheinstructionsforthetypeofproblemyouare
experiencing.IftheTroubleshootinginformationdoesnothelpyouresolveaproblem,continuewiththe
nextstep.
5.T ryusingapreviouslycapturedconfigurationtoseeifarecentchangetohardwareorsoftwaresettings
hascausedaproblem.Befor erestoringapreviousconfiguration,captureyourcurrentconfigurationin
casetheolderconfigurationsettingsdonotsolvetheproblemorhaveadverseeffects.T orestorea
capturedconfiguration,dothefollowing:
•ForWindows7:ClickStart➙ControlPanel➙SystemandSecurity➙System➙System
Protection➙SystemRestore.
•ForWindows8orWindows8.1:OpenControlPanel,andthenclickSystemandSecurity➙System
➙SystemProtection➙SystemRestore.
Note:FordetailedinformationonhowtoopenControlPanelonWindows8andWindows8.1,see
“AccessingControlPanelontheWindows8orWindows8.1oper atingsystem”onpage24.
Ifthisdoesnotcorrecttheproblem,continuewiththene xtstep.
6.Runthediagnosticprogram.See“LenovoSolutionCenter”onpage112formoreinformation.
•Ifthediagnosticprogramdetectsahardwarefailure,contacttheL enovoCustomerSupportCenter.
SeeChapter11“Gettinginformation,help,andservice”onpage113formoreinformation.
•Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See
Chapter11“Gettinginformation,help,andservice”onpage113formoreinformation.
•Ifthediagnosticprogramdoesnotdetectahar dwarefailure,continuewiththenextstep.
7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.
8.Ifnoneoftheseactionssolvethepr oblem,seektechnicalassistance.SeeChapter11“Getting
information,help,andservice”onpage113formoreinformation.
Troubleshooting
Usethetroubleshootinginformationtofindsolutionstoproblemsthathavedefinitesymptoms.
96ThinkCentreM93zUserGuide