•ForWindows8orWindows8.1:OpenControlPanel,andthenclickSystemandSecurity➙System
➙SystemProtection➙SystemRestore.
Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.
6.Runthediagnosticprogram.See“LenovoSolutionCenter”onpage53formoreinformation.
•Ifthediagnosticprogramdetectsahardwarefailure,contacttheLenovoCustomerSupportCenter.
See“LenovoSupportWebsite”onpage32
formoreinformation.
•Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See
“LenovoSupportWebsite”onpage32formoreinformation.
•Ifthediagnosticprogramdoesnotdetectahardwarefailure,continuewiththenextstep.
7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.
8.Ifnoneoftheseactionssolvetheproblem,seektechnicalassistance.See“LenovoSupportWeb
site”onpage32formoreinformation.
Troubleshooting
Usethetroubleshootinginformationtofindsolutionstoproblemsthathavedefinitesymptoms.
Ifthesymptomyourcomputerisexperiencingoccurredimmediatelyafteryouinstalledanewhardware
optionornewsoftware,dothefollowingbeforereferringtothetroubleshootinginformation:
1.Removethenewhardwareoptionorsoftware.Ifyoumustremovethecomputercovertoremovea
hardwareoption,makesureyoureviewandfollowtheelectricalsafetyinformationprovidedwithyour
computer.Foryoursafety,donotoperatethecomputerwiththecoverremoved.
2.Runthediagnosticprogramstoensureyourcomputerisoperatingcorrectly.
3.Reinstallthenewhardwareoptionorsoftwarefollowingthemanufacturer'sinstructions.
Selecttheproblemyourcomputerisexperiencingfromthefollowinglist:
•“Audioproblems”onpage37
•“CDproblems”onpage39
•“DVDproblems”onpage40
•“Intermittentproblems”onpage41
•“Harddiskdriveproblems”onpage41
•“Keyboard,mouse,orpointingdeviceproblems”onpage42
•“Monitorproblems”onpage44
•“Networkingproblems”onpage45
•“Optionproblems”onpage48
•“Performanceandlockupproblems”onpage48
•“Printerproblems”onpage50
•“Serialportproblems”onpage51
•“Softwareproblems”onpage51
•“USBproblems”onpage52
Audioproblems
Selectyoursymptomfromthefollowinglist:
•“NoaudioinWindows”onpage38
Chapter5.Troubleshootinganddiagnostics37
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