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Delivering a secure and fast boot experience with uefiPresentation Transcript
Improving the bootexperience
Service & App POST OS Initialization Initialization Service &POST App Init
Post with highest supported Seamless single graphicsnative resolution transition from firmware to Clean, high-resolution branding native OS driver elements persist through OS boot OEM OEM Logo Logo Device POST Hiber Resume Explorer Init. Init. 2s 4s 6s 7s
POST Windows Logon Early Launch Firmware BootMgr Boot Critical NTOS Kernel Anti-malware OK? OK? Drivers OK? OK? (ELAM) Last Resort Secure Boot UEFI Remediation / Factory Reset Recovery? Recovery Enterprise PXE External media Contact SupportFirmware Last Resort Reboot
Windows OS BIOS UEFI Win32/NT APIs UEFI OS Loader OS Loader ACPI Driver UEFI Runtime Services Compatibility Support Module (CSM) ACPI ACPI Legacy BIOS ACPI BIOS Registers Tables Platform Specific UEFI FirmwareFirmware System Hardware
Interface Legacy BIOS UEFI Architecture x86 / X64 only Agnostic Mode 16 bit (real mode) 32/64 bit Boot Partition MBR (2.2 TB limit) GPT (9.4 ZB* limit) Runtime Services No Yes Driver model No Yes POST Graphics VGA Graphical Output Protocol (GOP)* A zettabyte is equal to 1B terabytes. The total amount of global data was expected to pass 1.2 ZB sometime during 2010.