Lenovo ThinkCentre E73 - Keyboard, Mouse, or Pointing Device Problems

"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrect
harddiskdrive
Symptom:"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive
Actions:
•Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.
•EnsurethattheharddiskdriveyourcomputerstartsfromislistedastherststartupdeviceintheSetup
Utilityprogram.Referto“Selectingastartupdevice”onpage58
.
Note:Inrarecases,theharddiskdrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacetheharddiskdrive.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See“Lenovo
SolutionCenter”onpage53
.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.ClickStart➙ControlPanel.
2.ClickHardwareandSound.
3.ClickDevicesandPrinters.
4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformance
KeyboardCustomizationprogramstarts.
–OntheWindows8operatingsystem,dothefollowing:
1.OpenControlPanel.
2.ClickHardwareandSound.
3.ClickDevicesandPrinters.
4.Double-clickUSBEnhancedPerformanceKeyboard.TheUSBEnhancedPerformance
KeyboardCustomizationprogramstarts.
42ThinkCentreE73HardwareMaintenanceManual