The F8 key still remains assigned for advanced boot options once the Windows Boot Manager menu appears. To maintain a consistent boot experience on Extensible Firmware Interface systems that also have a boot manager of their own, the Windows Boot Manager, and hence all of the installed Windows operating systems that can be booted using it, appear as a single entry on the EFI boot manager menu.
It replaces the boot. Boot Configuration Data is stored in a data file which is formatted in the same way as a Windows registry hive.
Boot Configuration Data may be altered using a command-line tool, bcdedit. INI is a modifiable text file that contains some parameters which are the locations of the Operating Systems that are installed in our computer and some other parameters. Master Partition Table: This small bit of code that is referred to as a table that contains a complete description of the partitions that are contained on the hard disk.
The Master Boot Record, when fully executed, transfers control to the boot program stored on the first sector of the active partition Boot Sector. INI file and shows us a menu to select the Operating System in the case that we have two or more system. If we knew the syntax of BOOT. INI file content. The main changes are the followings: The Boot Sector of the partition is modified. This file has the same function that BOOT. INI has in the system based in NT core. The BCD store, with its familiar object-and-element architecture, uses GUIDs and names such as "Default" to precisely identify boot-related applications.
BCD includes its own set of boot options. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Still, it might require more tools like parallel network traces and additional debug logs such as Gpsvc logging to fully analyze a problem.
If the WinLogonInit phase takes a long time, you can use the Winlogon graph for further analysis. In this example the Group Policy processing took around seconds to complete, before the Windows desktop could be loaded. While the Winlogon graph does not explain why it took seconds to complete GPO processing which could be related to network issues, policy settings, GPO preferences, scripts, and so on , your can see where to investigate further.
The PostBoot phase includes all background activity that occurs after the desktop is ready. The user can interact with the desktop, but the system might still be starting services, tray icons, and application code in the background, potentially having an impact on how the user perceives system responsiveness.
One way to analyze the prefetcher activities is to run xperf. The above should give you some insight into where to start looking for issues during the Windows boot phase, as it will help you identify the correction section to start troubleshooting. A recommendation is to check the hardware platform thoroughly by updating the BIOS and checking hard drive performance with benchmarking tools prior to searching for the problem on the OS layer.
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