Introduction | Recovery 1. What is System Recovery?
With Windows XP system Recovery, users (system administrators and owners) can restore a machine to a previous state when they encounter problems. The system Recovery feature automatically monitors system file changes and changes to certain application files, recording or storing the state before the change. With system Recovery, users no longer have to consider saving snapshots for the system because it automatically creates easily identifiable restore points that allow the user to restore the system to a previous state. Restore points are created when significant system events occur (for example, when an application or driver is installed), and are also created on a regular (daily) basis. In addition, users can create and name their own restore points at any time.
Which versions of 2.Windows have system recovery capabilities? Windows Me and Windows XP (Home Edition and Professional Edition). The following questions and answers are mainly for Windows XP.
3. What is the difference between system recovery and file backup? System Recovery monitors only a set of core system files and certain types of application files (such as files with a suffix of exe or DLL), records the state of those files prior to the change, and the backup utility backs up the user's personal data files to ensure that a secure copy is stored on a local disk or other media. System recovery does not monitor or recover changes to personal data files (for example, documents, graphics, e-mail, and so on). The system data contained in the restore point of the System Restore can only be restored over a period of time, and backups made by the Backup tool may be restored at any time.
4. Does the System Restore require the user to turn on? No need. Windows XP system Recovery is automatically turned on, but requires at least 200M of available hard disk space. If the hard drive does not have 200M of free space, system recovery will automatically be disabled, and will automatically open once enough space has been available. By default, the system restores up to 12% of the hard disk space, and its "Automatic Restore point space management" clears the oldest restore points, frees up space, and maintains the rolling security of the system recovery.
5. Does system recovery degrade system performance?
No. System recovery does not have a significant impact on system performance when monitoring the operating state of the systems. Creating a restore point is a very fast process, usually in just a few seconds. Periodic system State checks (the default is once every 24 hours) are also performed only during system idle time, without interfering with the operation of any user program.
6. Who has the right to use system recovery? Only users with administrator privileges can use System recovery to restore past system State, or adjust system recovery parameter settings. However, the creation of a restore point is independent of whether the administrator is logged on. For example, system recovery will still create system checkpoints and event-driven checkpoints when other users who are not administrators use the machine, but the user cannot use the Restore feature, and only users with administrator privileges have permission to restore machine status.
7. Does System Restore protect user personal data files such as Word documents and e-mail? No. System recovery does not monitor changes to user personal data files, such as documents, graphics, e-mail, and so on, and cannot recover these files.
8. What files are monitored by system recovery? System Recovery only monitors a set of core system files and certain types of application files (such as file suffixes EXE and DLL) to record the state of these files before the system changes. See all protected file types, refer to the "monitored file suffix" in the Platform SDK System Recovery section.
9. How does system recovery handle the password problem? 1 Windows XP password and password issues prompt does not recover. This is to prevent the restore point to include a user has not been remembered the old password, causing confusion to the user caused inconvenience.
2 IE and Content Advisor password and password problem prompts do not recover. The reason is ditto.
Password to recover:
1 Restore application passwords for web-based servers such as Windows Messenger, AOL Messenger, QQ, and so on. Restoring these old passwords does not bother the user because the machine stores only password backups, and the actual passwords are stored on the Web server. System Recovery simply restores the old password that the application stores locally, without actually changing the program password. Users still need to log on to the server using the current password.
2 domain and host passwords are similar to the above. Once the host is reconnected to the domain, the old password in the cache is upgraded to the current password.
10. Does the System Restore automatically uninstall the program before it is restored to an application installation? System Recovery does not completely uninstall the application. Because system recovery only monitors and restores changes to specific types of files, such as the system file changes caused by the installation of the program, and so on, so if you want to completely clean up all the changes caused by installing an application and completely uninstall the application, users first need to use the "Add or Remove Programs" option in Control Panel to remove the program. What system recovery does is restore the system changes caused by the installation, including:
1 delete the increased monitored files at installation
2 recovery of monitored system file changes
3 Restore the registry (note: Keep part of the registry current value)
4 installation of additional or modified non-monitored files and other files can not be recovered, and will not be deleted, such as the application will not delete the new graphics files and text files, and will not revert to the existing such file changes.
11. Why do I delete some of the downloaded executables when I recover? If the file suffix being downloaded belongs to a monitored file type, the files will be lost if the restore point is before downloading. If you don't want to lose these files, you can move them to the My Documents folder or to other areas of the hard drive that are not being monitored. If a useful download file is deleted in the event of a recovery, you can also recover the files by undoing this recovery.
12. When will the restore point be created? Users can manually create restore points by using System Recovery Wizard at any time. In addition, the system will automatically create restore points under the following conditions:
1) Install device driver
2 Install the application with Windows Installer, or install Shield Pro 7.0 and above
3 using automatic upgrades for Windows XP upgrades
4 Perform system Recovery operations (when performing system recovery operations, a restore point is also created so that the user can undo the recovery process if needed)
5 Recover data from backup media using Backup tools
6 every 24 hours to create a day restore point
13. Can I keep a permanently available restore point? No way. The current system recovery system does not support this feature. Each restore point saves only system changes since the last restore point was created, which minimizes space consumption or improves performance, and all restore points are associated with each other. Therefore, to restore the machine from its current state to a previous state, all restore point records between the two restore points are available. For example, when a user attempts to restore machine state from D to point A, system recovery requires all changes to the C, B, and a point records.
If you want to set a restore point to a permanent restore point, it will take a lot of space to store the entire chain of restore points, and for now, this is very unrealistic. System Recovery has a "automatic restore point Space management" function, will automatically remove the oldest restore point, free up space. By default, the maximum duration of a restore point is 90 days.
14. How much hard disk space does the system need to restore? 1) greater than 4G hard disk, by default, system recovery consumes 12% of hard disk space
2) Less than 4G hard disk, by default, System Recovery takes up only 400M space
3 at any time, users can adjust their own space for system recovery
