UsingSystemUpdate
TheSystemUpdateprogramhelpsyoukeepthesoftwareonyourcomputerup-to-date.Updatepackages
arestoredonLenovoserversandcanbedownloadedfromtheLenovoSupportWebsite.Updatepackages
cancontainapplications,devicedrivers,BIOSashes,orsoftwareupdates.WhentheSystemUpdate
programconnectstotheLenovoSupportWebsite,theSystemUpdateprogramautomaticallyrecognizes
themachinetypeandmodelofyourcomputer,theinstalledoperatingsystem,andthelanguageofthe
operatingsystemtodeterminewhatupdatesareavailableforyourcomputer.TheSystemUpdateprogram
thendisplaysalistofupdatepackagesandcategorizeseachupdateascritical,recommended,and
optionaltohelpyouunderstandtheimportance.Youhavecompletecontrolofwhichupdatestodownload
andinstall.Afteryouselecttheupdatepackagesyouwant,theSystemUpdateprogramautomatically
downloadsandinstallstheupdateswithoutanyfurtherinterventionfromyou.
TheSystemUpdateprogramispreinstalledonmostLenovocomputersandisreadytorun.Theonly
prerequisiteisanactiveInternetconnection.Youcanstarttheprogrammanually,oryoucanusethe
schedulefeaturetoenabletheprogramtosearchforupdatesautomaticallyatspeciedintervals.Youalso
canpredenescheduledupdatestosearchbyseverity(criticalupdates,criticalandrecommendedupdates,
orallupdates)sothelistyouchoosefromcontainsonlythoseupdatetypesthatareofinteresttoyou.
ToopentheSystemUpdateprogram,see“AccessingLenovoprogramsontheWindows7operatingsystem”
onpage6
or“AccessingLenovoprogramsontheWindows8operatingsystem”onpage7.
IftheSystemUpdateprogramisnotcurrentlyinstalledonyourcomputer,youcandownloaditfromthe
LenovoSupportWebsiteathttp://www.lenovo.com/support.
Cleaningandmaintenance
Withappropriatecareandmaintenanceyourcomputerwillserveyoureliably.Thefollowingtopicsoffer
informationtohelpyoukeepyourcomputerintopworkingorder.
•“Basics”onpage86
•“Cleaningyourcomputer”onpage87
–“Computer”onpage87
–“Keyboard”onpage87
–“Opticalmouse”onpage87
–“Displayscreen”onpage87
•“Goodmaintenancepractices”onpage88
Basics
Herearesomebasicpointsaboutkeepingyourcomputerfunctioningproperly:
•Keepyourcomputerinaclean,dryenvironment.Ensurethatitrestsonaat,steadysurface.
•Donotplaceitemsonthetopofthemonitororcoveranyoftheowoutinthemonitororcomputer.
Theseventsenableheatproducedinsidethecomputertoventandenablecoolairtoowin.Toensure
properairowandcoolingofyourcomputer,donotblockthecomputerinletandoutlet.Leaveatleast2
cm(0.79inches)ofspacetoensureproperairow.
Attention:Blockingthecomputerinletoroutletwillcausethermalfailure.
•Keepfoodanddrinksawayfromallpartsofyourcomputer.Foodparticlesandspillsmightmakethe
keyboardandmousestickyandunusable.
•Donotgetthepowerswitchesorothercontrolswet.Moisturecandamagethesepartsandcausean
electricalhazard.
86ThinkCentreM93zUserGuide
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