Asus H170-PLUS D3 - Page 76

Delete KEK
AllowsyoutodeletetheKEKfromyoursystem.OncetheKEKisdeleted,thedb
andthedbxcannotbeupdatedintheoperatingsystem.
Load Default KEK
SelectYestoloadthesystemdefaultKEKorselectNotoloadadownloadedKEK
fromaUSBstoragedevice.
Append Default KEK
SelectYestoappendthesystemdefaultKEKorselectNotoappendadownloaded
additionalKEKfromaUSBstoragedeviceforthedbanddbxmanagement.
TheKEKlemustbeformattedasaUEFIvariablestructurewithtime-basedauthenticated
variable.
DB Management
Thedb(AuthorizedSignaturedatabase)liststhesignersorimagesofUEFI
applications,operatingsystemloaders,andUEFIdriversthatyoucanloadonthe
singlecomputer.
Delete the db
Allowsyoutodeletethedblefromyoursystem.Doingsomaycausebootfailures.
Load Default db
SelectYestoloadthesystemdefaultdborselectNotoloadadownloadeddbfrom
aUSBstoragedevice.
Append Default db
SelectYestoappendthesystemdefaultdborselectNotoappendadownloaded
additionaldbfromaUSBstoragedevicetoloadcertaincustomizedUEFI
executableles.
 TheDBlemustbeformattedasaUEFIvariablestructurewithtime-based
authenticatedvariable.
 UEFIexecutablelesincludeUEFIbootdevices,driversandapplications
dbx Management
Thedbx(RevokedSignaturedatabase)liststheforbiddenimagesofdbitemsthatare
nolongertrustedandcannotbeloaded.
Delete the dbx
AllowsyoutodeletetheDBXlefromyoursystem.Doingsomayexposethe
systemtosecuritythreats.
Load Default dbx
SelectYestoloadthesystemdefaultdbxorselectNotoloadadownloadeddbx
fromaUSBstoragedevice.
Append Default dbx
SelectYestoappendthesystemdefaultdbxorselectNotoappendadownloaded
additionaldbxfromaUSBstoragedevicetoforbidcertaincustomizedUEFI
executableles.
TheDBXlemustbeformattedasaUEFIvariablestructurewithtime-basedauthenticated
variable.
2-42 Chapter 2: Getting started