Lenovo ThinkPad Edge E420 - Updating Your System UEFI BIOS

UpdatingyoursystemUEFIBIOS
TheUniedExtensibleFirmwareInterface(UEFI)BIOSisapartofthesystemprogramsthatmakeupthe
basiclayerofsoftwarebuiltintoyourcomputer.UEFIBIOStranslatestheinstructionsfromothersoftware
layers.
Yourcomputersystemboardhasamodulecalledelectricallyerasableprogrammableread-onlymemory
(EEPROM,alsoreferredtoasashmemory).YoucanupdateUEFIBIOSandtheConguration/ThinkPad
Setupprogrambystartingyourcomputerwithaashupdateopticaldiscorashupdatetoolapplication
runningontheWindowsenvironment.
Insomeinstanceswhenyouaddsoftware,hardware,oradevicedriver,youmaybeinformedthatyouneed
toupdateyourUEFIBIOSinorderforthenewadditiontoworkproperly.
ToupdateyourUEFIBIOS,gotothefollowingWebsiteandfollowtheinstructionsonthescreen:
http://www.lenovo.com/ThinkPadDrivers
Chapter8.Advancedconguration123