Introduction to Windows XP registry backup

Author: Gao Shan

Frequent system errors and sometimes even system crashes make backup very important. No one wants to crash the system and has to reinstall Windows XP. You can use different methods to back up your registry. You can also store your backup version on multiple media, but first, you must understand the file system type that your computer network is using. Windows XP supports fat and NTFS file systems.

Here I will first introduce fat, FAT32 and NTFS.

File Allocation Table (FAT)

A file system that organizes and manages files by MS-DOS and other Windows operating systems. The file allocation table (FAT) is a data structure created by windows when you format a specific volume using the fat or FAT32 file system. In Windows, file-related information is stored in fat for future file retrieval.

FAT32

A file system derived from the file allocation table (FAT) file system. Compared with fat, FAT32 supports smaller clusters and larger capacity, thus allocating disk space more efficiently on FAT32 volumes.

NTFS file system

An advanced file system that provides performance, security, reliability, and advanced features not available in various fat versions. For example, NTFS ensures volume consistency through the standard transaction log feature and recovery technology. If the system fails, NTFS can use log files and checkpoint information to restore file system consistency. In Windows 2000 and Windows XP, NTFS also provides advanced features such as file and folder permissions, encryption, disk quotas, and compression. The NTFS file system is a secure file system. It is not easy to access NTFS on other operating systems that are incompatible with NTFS, such as DoS or Windows 95/98/ME.

Below I will introduce several common backup methods:

I. Backup tools-back up to tape or other media

This method is simple. You only need to select system state in the backup tree, and you can back up the data or use the automatic system recovery wizard on the backup's welcome tab. With the selected Asr (Automatic System Recovery), the navigator creates three backup sets, which can be completed by following the wizard.

Ii. Use copy or xcopy for backup

When Windows XP is using the registry, the current registry cannot be copied back. Therefore, to use copy or xcopy to repair the registry, you must Disable Windows XP and start another such as DOS, windows 98/me operating system, or the second Windows XP. (We recommend that you use a dual-system. For details about how to configure multiple systems, see "dual-boot configuration under Windows XP".) Using copy or xcopy to back up the registry is easier than using the backup tool:

1. Run backup.ProgramAnd create an ASR floppy disk

Copy your registry backup in the % SystemRoot % \ repair directory to another location

2. Use xcopy to copy all the current registry files under the % SystemRoot % \ system32 \ config directory. The/C option can be used to make xcopy ignore errors (this is required because the current registry is being used. Otherwise, an error occurs ).

Iii. Backup method when fat is used

By formatting a floppy disk with the/sys option, Windows XP users using the FAT file system can easily start DoS or Windows 98/ME (if FAT32 is used ). The doscommand prompt is displayed, which allows you to easily read and write the hard disk. To create a fat-compatible boot floppy disk, you only need to add the/S System option to the format command of Windows 98/me or dos. Then put the xcopy (xcopy *. *) copy to this floppy disk. With this floppy disk, you can start it on a Windows XP Machine and freely access all the fat-format drives on the computer. After the command prompt is displayed, it is a simple task to copy the registry files to a safe location. You can copy the files to another hard disk and several floppy disks, CD-R/CD-RW disc or other supported media on zips.

4. Use NTFS for backup (not recommended)

We have provided a detailed introduction to NTFS. Files on NTFS drives can only be written by Windows XP, but not on other operating systems. To access the Registry file on NTFS, you must install the second Windows XP.

5. Use Regedit to verify the Registry

You can use the Registry Editor (Regedit) to create another registry Backup and Restore by double-clicking a small icon. If you perform a simple primary step, you can create a backup that includes all the Registry content except the Security and Sam registration keys. The following uses Regedit technology to back up the security and Sam registration keys:

1. Run regedit.

2. Now we can see that my coputer is highlighted.

3. Select the export Registry File option in the registry menu.

4. Find the desktop, enter the name of the file, and click Save.

5. exit Regedit.

The Regedit version provided in Windows XP is output as a registry file in unicode format.

It is important to put your backup files in a safe place.

Please share gaoshan333333@163.com with me if you have good technology