Author: Gao Shan
Often system errors and sometimes even cause system crashes. Backup becomes very important at this time. No one wants the system to crash and has to reinstall Windows XP. You can use different methods to back up your registry, and you can also put your backup version on multiple media, but you must first understand what type of file system your computer network is using. Windows XP supports two different file systems: FAT and NTFS.
Here I will first introduce FAT, FAT32 and NTFS.
File allocation table (FAT)
A file system for MS-DOS and other Windows operating systems to organize and manage files. File Assignment Table (FAT) is a data structure created by Windows when you format a specific volume using a FAT or FAT32 file system. Windows stores information related to files in FAT for future use when obtaining files.
FAT32
A file system derived from a file allocation table (FAT) file system. Compared with FAT, FAT32 can support smaller clusters and larger capacity, so that disk space can be allocated more efficiently on FAT32 volumes.
NTFS file system
A high-level file system that provides performance, security, reliability and advanced features that are not available in various FAT versions. For example, NTFS ensures volume consistency through standard transaction logging capabilities and recovery techniques. 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. NTFS file system is a secure file system that uses other operating systems that are incompatible with NTFS such as DOS or Windows 95/98/me, and is not easy to access NTFS.
Here are some commonly used backup methods:
1. Backup tool---Backup to tape or other media
This method is relatively simple. Just select System State in the backup tree, and you can backup or use the automatic system recovery wizard on the Welcome tab of Backup. Using the selected ASR (Automated System Recovery), the navigator will create three backup collections, which you can complete based on the wizard.
2. Use copy or xcopy for backup
When Windows XP is using the registry, it cannot copy the current registry back. Therefore, to use copy or xcopy to repair the registry, you must close Windows XP and start another operating system such as DOS, Windows 98/Me, or a second Windows XP. (It is recommended that you use dual systems. For multi-system configuration, see "Dual Boot Configuration under Windows XP"). Backing up the registry with copy or xcopy is easier than using the Backup tool:
1. Run the Backup program and create an ASR floppy disk
Copy the backup of your registry found in the %SystemRoot%\Repair directory to another place
2. Then use xcopy to copy all the current registry files under the %SystemRoot%\System32\Config directory. Use the /c option to make xcopy ignore errors (this is necessary because the current registry is being used. Otherwise an error will occur).
3. Backup method when using FAT
Windows XP users using the FAT file system can easily start DOS or Windows 98/Me (if FAT32 is used) by formatting the floppy disk with the /sys option. Then a DOS command prompt will be displayed, which can easily read and write the hard disk. To create a bootable floppy disk that is compatible with FAT, just use the FORMAT command of Windows 98/Me or DOS plus the /s system option. Then copy those about xcopy (xcopy*.*) to the floppy disk. Use this floppy disk to boot on a Windows XP machine and can freely access all FAT format drives on the computer. After the command prompt appears after the startup is completed, copying those registry files to a safe location is just a very simple task. You can copy them to another hard disk, several floppy disks, CD-R/CD-RW discs on the ZIP disk or other supported media.
4. Use NTFS for backup (recommended not to use)
NTFS has been introduced in detail earlier. Files on NTFS drives can only be written by Windows XP, while other operating systems cannot. In order to be able to access the registry file on NTFS, you must install a second Windows XP.
5. Use RegEdit to share the registry
Using Registry Editor (RegEdit), you can create another registry backup for recovery by double-clicking a small icon. If you follow the simple main steps, you can create a backup that includes all the registry contents except the Security and SAM registration keys. The following uses RegEdit technology to back up Security and SAM registration keys:
1. Run RegEdit.
2. You can now see that My Computer is in the highlighted state.
3. Select the Export Registry file option in the Registry menu.
4. Find Desktop and enter a name for this file, and then click the Save button.
5. Exit RegEdit.
The RegEdit version provided in Windows XP is output in the registry file as Unicode format.
It is especially important to note that it is particularly important to keep your backup files in a safe place.
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