No matter how stable Microsoft is, how safe it is, and how we maintain and manage our own computers, we can't guarantee that our system will never have problems or even crash, because the system is very likely due to operational errors or other Unpredictable factors can't work properly, so it's important to take some safety and backup measures before the system fails to prevent it from happening. 1. Backup system files The backup system files we have mentioned here are completed by creating an emergency recovery disk. When the computer system is working properly, we can make a system emergency recovery disk, so that it can be used to restore system files when there is a problem in the system. In this way we can repair the basic system, including system files, boot sectors and boot environment. The steps are as follows: Open the "Start" menu, select "Programs" --> "Accessories" --> "System Tools" --> "Backup" command, open the "Backup Tool Wizard" window, you can click directly Advanced Mode", open the "Backup Tool" window, in the "Welcome" tab, click the "Automatic System Recovery Wizard" button, the "Automatic System Recovery Preparation Wizard" dialog box will open, click the "Next" button, Go to the "Backup Destination" dialog box, insert a blank floppy disk in the floppy drive, and then click the "Next" button to continue to complete the backup. 2, backup hardware configuration file hardware configuration file can guide Windows XP to load the correct driver when the hardware changes, if we have some hardware installation or modification, it is very likely that the system can not start or run normally, then we You can use the hardware configuration file to restore your previous hardware configuration. It is recommended that users back up the hardware configuration files each time they install or modify the hardware, which can easily solve many system problems caused by hardware configuration. The steps are as follows: Right-click "My Computer", select the "Properties" command in the shortcut menu that pops up, open the "System Properties" dialog box, click the "Hardware" tab, and click "Hardware Configuration" in the window that appears. File button, open the "Hardware Profile" dialog box, in the "Available Hardware Profiles" list shows a list of hardware profiles available in the local computer, in the "Hardware Profile Selection" area, the user can choose to start Which hardware profile is called when Windows XP (if there are multiple hardware profiles). To back up the hardware configuration file, click the "Copy" button, enter a new file name in the "To" text box in the "Copy Configuration File" dialog that opens, and then click the "OK" button. 3, backup registry file registry is the core file of Windows XP system, it contains all the hardware, software and system configuration information and other important content of the computer, therefore, we need to do a backup of the registry, in case of any eventuality . The steps are as follows: First enter "Regedit.exe" in the "Run" command box to open the Registry Editor. If you want to back up the entire registry, select the root directory (My Computer Node), then select "Export" from the menu. Command, open the "Export Registry File" dialog box, enter a new name in the "File Name" text box, select the specific path, click the "Save" button. Note that by default, the Registry Editor will use the registry subtree or the entire tree we selected as the save object. If you want to back up the entire registry, select the "All" radio button in the "Export Range"; if only backup For a branch in the registry, select the "Selected Branches" radio button and enter the name of the branch you want to export. 4, the production system boot disk for computers that can not boot from the CD boot, in order to prevent system failure and can not boot, we should also make a boot disk used to boot the computer, when the system can not boot, boot the computer with the boot disk boot You can use the Recovery Console, Emergency Repair Disk, and Automatic System Recovery to recover your system. Prepare 4 blank, formatted 3.5-inch floppy disks labeled "Startup Disk 1", "Startup Disk 2", "Startup Disk 3", and "Startup Disk 4" for easy differentiation. When Windows XP is installed, The boot disk can be easily created according to the installation wizard. 5, backup the entire system In our computer system, often stored some very important general data, some of them are even more important than the system data, such as the company's financial data and business data. Therefore, while backing up the system data, we should also pay attention to backing up some regular important data. To back up the entire system data, proceed as follows: Open the "Start" menu, select the "Programs", "Accessories", "System Tools", "Backup" command, open the "Welcome" tab in the "Backup Tools" window, Click the "Backup" button to open the "Backup Wizard" dialog box, click the "Next" button, the system will open the "What to back up" dialog box, select "Backup this" in the "Select data to back up" option area "All items for a computer" radio button, then click the "Next" button to continue the wizard. Note: In the "What to back up" dialog box, if you only need to back up the system's status data, you can select the "Back up only system status data" radio button; if you only need to back up the specified data, you can select "Backup selected" File, drive or network data radio button. 6, create a system restore point "system restore" is one of the components of Windows XP, in order to restore the computer to the past state in case of problems, but at the same time does not lose personal data files (such as Microsoft Word documents, browsing history, Drawing, favorites or email). System Restore monitors changes to the system and some application files and automatically creates easy-to-recognize restore points. These restore points allow the user to restore the system to a state in the past. The method is as follows: open the "Start" menu, select the "Program", "Accessories", "System Tools", "System Restore" command, open the System Restore Wizard, select "Create a Restore Point", click the "Next" button, for Once the restore point is named, click the Create button to create a restore point. 7. Set the corresponding strategy of Windows XP when the system stops abnormally. We can also set the response measures of Windows XP when the system stops abnormally when the system is normal. For example, we can specify the computer to restart automatically, as follows: Right-click "My Computer", select "Properties" in the pop-up shortcut menu, open the "System Properties" settings window, select the "Advanced" tab, open the "Advanced" tab, in the "Startup and Recovery" option area Click the "Settings" button to open the "Startup and Recovery" dialog box. In the "System Failure" option area, you can select the response policy after the system fails by enabling the check box in the "Write Debug Information" option area. You can set the processing method when writing system debugging information. After setting, click the "OK" button to return to the "System Properties" dialog box, and then click the "OK" button. Windows XP provides many ways to restore your system, including the "System Restore" mentioned above, the use of emergency recovery disks and backup functions, and of course the familiar "safe mode" methods. 1, the system restore method We mentioned the role of system restore and the method of creating a system restore point, when the system has problems, you can use System Restore to restore the system to the state when there is no problem before, by: Open the "Start" menu, Select "Programs"-->"Accessories"-->"System Tools"-->"System Restore" command, open the System Restore Wizard, and then select "Restore my computer to an earlier time", single Click the "Next" button, select the system restore point, click "Next" to restore the system. Note: Although System Restore supports use in Safe Mode, the computer is running in Safe Mode and System Restore does not create any restore points. Therefore, when the computer is running in safe mode, the restore operation performed cannot be undone. 2, restore the driver If you find that the hardware does not work after installing or updating the driver, you can use the restore function of the driver. To do this: In the Device Manager, select the hardware you want to restore the driver, double-click it to open the Properties window, select the Drivers tab, and then select the Back to Driver button. 3. Use "Safe Mode" If the computer does not start properly, you can use "Safe Mode" or other boot options to start the computer. After successful, we can change some configurations to eliminate system failures. For example, you can use the system restore mentioned above. ", "return the driver" and use the backup file to restore the system. The user wants to start the computer using "safe mode" or other boot options, press the F8 key when the boot menu appears, then use the arrow keys to select the boot option and press the Enter key. The following is a description of the advanced boot options for Windows XP: Basic Safe Mode: Start Windows XP with only the most basic system modules and drivers, no network support, loaded drivers and modules for mouse, monitor, keyboard , memory, basic video, and default system services, the boot log can also be enabled in secure mode. Safe mode with network connection: Windows XP is started only with basic system modules and drivers, and network support is loaded, but PCMCIA network is not supported. The security mode with network connection can also enable the startup log. Enable boot log mode: Generate a boot log file for the driver and service being loaded. The log file is named Ntbtlog.txt and is saved in the root directory of the system. Enable VGA mode: Use the basic VGA (video) driver to start Windows XP. If the reason why Windows XP does not start properly is because a new video card driver is installed, this mode is very useful, and other security modes are only used. Basic video driver. The last correct configuration: using Windows XP, the last shutdown is the saved settings (registration information) to start Windows XP, only used in the case of configuration errors, can not solve the problem caused by the driver or file corruption or loss, when the user After selecting the "Last Known Good Configuration" option, the modifications and system configuration made after the last correct configuration will be lost. Directory Service Recovery Mode: Restore Active Directory information for domain controllers. The option is for Windows XP domain controllers only and not for Windows XP Professional or member servers. Debug mode: When you start Windows XP, send debugging information to another computer via a serial cable so that the user can solve the problem.