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Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See“Lenovo
SolutionCenteronpage53
.Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage32.
"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrect
harddiskdrive
Symptom:"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive
Actions:
Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.
EnsurethattheharddiskdriveyourcomputerstartsfromislistedasthefirststartupdeviceintheSetup
Utilityprogram.Referto“Selectingastartupdevice”onpage58.
Note:Inrarecases,theharddiskdrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacetheharddiskdrive.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See“Lenovo
SolutionCenteronpage53
.Ifyouneedtechnicalassistance,see“LenovoSupportWebsite”onpage32.
Keyboard,mouse,orpointingdeviceproblems
Selectyoursymptomfromthefollowinglist:
Allorsomekeysonthekeyboarddonotwork”onpage42
“Themouseorpointingdevicedoesnotwork”onpage43
“Thepointeronthescreendoesnotmovesmoothlywiththemouse”onpage43
“Thewirelesskeyboarddoesnotwork”onpage43
Allorsomekeysonthekeyboarddonotwork
Symptom:Allorsomekeysonthekeyboarddonotwork.
Actions:
Verifythatthekeyboardcableissecurelyconnectedtothecorrectconnectoronthecomputer.
IfyouareusinganEnhancedPerformanceUSBkeyboardandoneormoreoftheRapidAccessbuttons
aretheonlykeysthatarenotworking,thesebuttonsmighthavebeendisabledorhavenotbeenassigned
toafunction.UsethehelpsystemintheEnhancedPerformanceCustomizationKeyboardprogramto
helpdiagnoseproblemswiththeRapidAccessbuttons.
ToopentheEnhancedPerformanceCustomizationKeyboardprogram,dooneofthefollowing:
OntheWindows7operatingsystem,dothefollowing:
1.ClickStartControlPanel.
2.ClickHardwareandSound.
3.ClickDevicesandPrinters.
4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformance
KeyboardCustomizationprogramstarts.
OntheWindows8orWindows8.1operatingsystem,dothefollowing:
1.OpenControlPanel.
2.ClickHardwareandSound.
3.ClickDevicesandPrinters.
42ThinkCentreE73HardwareMaintenanceManual
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