Specifications

•ForWindows8orWindows8.1:OpenControlPanel,andthenclickSystemandSecurity➙System

➙SystemProtection➙SystemRestore.

Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.

6.Runthediagnosticprogram.See“LenovoSolutionCenter”onpage53formoreinformation.

•Ifthediagnosticprogramdetectsahardwarefailure,contacttheLenovoCustomerSupportCenter.

See“LenovoSupportWebsite”onpage31

formoreinformation.

•Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See

“LenovoSupportWebsite”onpage31formoreinformation.

•Ifthediagnosticprogramdoesnotdetectahardwarefailure,continuewiththenextstep.

7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa

virus,removethevirus.

8.Ifnoneoftheseactionssolvetheproblem,seektechnicalassistance.See“LenovoSupportWeb

site”onpage31formoreinformation.

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”onpage46

•“Optionproblems”onpage48

•“Performanceandlockupproblems”onpage48

•“Printerproblems”onpage50

•“Serialportproblems”onpage51

•“Softwareproblems”onpage51

•“USBproblems”onpage52

Audioproblems

Selectyoursymptomfromthefollowinglist:

•“NoaudioinWindows”onpage38

Chapter5.Troubleshootinganddiagnostics37