Resolving BCD management tools under Windows 7

BCD (Boot Configuration Date) is the system boot configuration data, which was introduced from Windows Vista. We know that in Windows Vista/Server 2008, the BootManager component is responsible for the initialization and booting of the system, and the boot data of the matching system is stored in the BCD. I believe that everyone is very concerned about BCD data management under Windows 7, the author and everyone together to discuss this aspect.

1, BCD data management tools

Perhaps the most commonly used and most familiar system boot management is the system advanced boot menu, and Windows 7 is no exception. When a system boot failure occurs, in order to successfully enter the system or debug, we will choose to press the F8 key during the system startup process to enter the advanced boot options menu, and select an advanced boot mode from this menu to boot the attempt. The boot methods available to us here are mainly security mode, enable boot log, last configuration correctly, directory service restore mode, and disable driver pre-force. It should be noted that these advanced modes will temporarily fix the startup mode of the operating system to help solve the problem and diagnose the fault, but these modes will not make any permanent modifications to the boot configuration or BCD storage. Therefore, the system advanced boot menu is not a valid BCD data management tool. Similar to previous Windows systems, the tools that can be used to modify boot configuration and manage BCD storage in Windows 7 are mainly "Startup and Recovery", console, system configuration using tools (msconfig.exe), and more advanced BCD. Editor (bcdedit.exe). This article uses these three tools as an example to talk about the management of BCD data. (Figure 1)

2, use “ start and failure recovery & rdquo; console implementation system boot configuration

"Start and fail recovery in Windows 7" In the console we can configure the basic options during system startup, which can be used to set the default operating system, the display time of the available operating system selection menus, and the display time of the recovery options when needed. Whether you need to boot your computer to a different operating system, you can optimize these settings to reduce the time required for system startup and speed up the system startup process.

According to the following steps, you can enter Windows 7 "Startup and Recovery": Console: Right click on the "Computer" icon on the desktop, select "Properties" in the System Properties window. In the left pane, click the “Advanced System Settings” link under Tasks in the left pane. In the System Properties dialog box, under the “Advanced” tab, click the “Settings” button under the “Startup and Recovery” option to enter the “Startup and Recovery” as shown in Figure 2. ; console. In the console, we can choose the default boot operating system. On the computer with multiple operating systems installed, click the “Default Operating System” list to select the operating system that you want to boot by default. A system is the default system that is currently started. You can set the display time of the operating system selection list by selecting the "Show time of the operating system list" check box and entering the time (in seconds) to be used in the text box on the right. In order to speed up the system startup speed, if there is only one system in the computer that can be set to “0”, this will not display the boot menu to directly boot the default system. In addition, in the “Startup and Recovery” console, you can set up subsequent operations when the system fails. Because this part of the content has little to do with BCD, and some authors have done a very in-depth analysis of this (link is http://winsystem.ctocio.com.cn/Longhorn/88/8850588_1.shtml), so this is slightly Over. (Figure 2)

3, use “ system configuration tool & rdquo; management system boot configuration

through “ system configuration tool (msconfig.exe) & rdquo;, We can adjust the startup mode of the computer in Windows 7. Typically, advanced users use the tool to troubleshoot and diagnose system failures. For example, as part of troubleshooting, you can use the diagnostic boot mode with the configuration computer to load only the most basic drivers and services.

Click “Start”→“Run”Enter msconfig.exe and press Enter to start the system configuration tool", the tool provides a lot of options, it should be said that we manage BCD The most convenient tool. Under the “General” tab, you can configure how the system is booted and whether you need to boot the system into debug and diagnostic mode. By using these options, you can choose to perform regular startup, diagnostic startup, or selective startup. After restarting the computer and resolving the issue, you will need to open the System Configuration Tool again and select the “Normal Startup" radio button in the “General" tab. (Figure 3)