casetheoldercongurationsettingsdonotsolvetheproblemorhaveadverseaffects.Torestorea
capturedconguration,dothefollowing:
•ForWindows7:ClickStart➙ControlPanel➙SystemandSecurity➙System➙System
Protection➙SystemRestore.
•ForWindows8:OpenControlPanel,andthenclickSystemandSecurity➙System➙System
Protection➙SystemRestore.
Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.
6.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.
7.Ifnoneoftheseactionssolvetheproblem,seektechnicalassistance.See“LenovoSupportWeb
site”onpage29formoreinformation.
Troubleshooting
Usethetroubleshootinginformationtondsolutionstoproblemsthathavedenitesymptoms.
Ifthesymptomyourcomputerisexperiencingoccurredimmediatelyafteranewhardwareoptionornew
softwareinstalled,dothefollowingbeforereferringtothetroubleshootinginformation:
1.Removethenewhardwareoptionorsoftware.Ifyoumustremovethecomputercovertoremovea
hardwareoption,havethecomputerserviced.Foryoursafety,donotoperatethecomputerwiththe
coverremoved.
2.Runthediagnosticprogramstoensureyourcomputerisoperatingcorrectly.
3.Reinstallthenewhardwareoptionorsoftware.
Selecttheproblemyourcomputerisexperiencingfromthefollowinglist:
•“Audioproblems”onpage35
•“CDproblems”onpage37
•“DVDproblems”onpage38
•“Intermittentproblems”onpage39
•“Keyboard,mouse,orpointingdeviceproblems”onpage39
•“Monitorproblems”onpage41
•“Networkingproblems”onpage43
•“Optionproblems”onpage45
•“Performanceandlockupproblems”onpage46
•“Printerproblems”onpage48
•“Serialportproblems”onpage48
•“Softwareproblems”onpage49
•“USBproblems”onpage50
Audioproblems
Selectyoursymptomfromthefollowinglist:
•“NoaudioinWindows”onpage36
•“AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitisinsertedintoadrive”
onpage36
•“Soundcomesfromoneexternalspeakeronly”onpage36
Chapter5.Troubleshootinganddiagnostics35
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