What Is a System Restore?

The purpose of system restore is to return the system to working condition without reinstalling the operating system and destroying data files. System Restore added this feature in Windows Me and has been used in operating systems above Windows Me. System Restore can restore the registry, local configuration files, COM + database, Windows File Protection (WFP) cache (wfp.dll), Windows Management Instrumentation (WMI) database, Microsoft IIS metadata, and utilities are copied to Restore by default Files in the archive. You cannot specify what to restore: either all or none.

First, create the system

1. What is system recovery?

With Windows XP's System Recovery feature, users (system administrators and owners) can restore the machine to its previous state when encountering problems. The system recovery feature automatically monitors changes to system files and changes to certain application files, recording or storing the state before the change.

With system recovery, users no longer need to think about saving snapshots for the system, because it can automatically create easy-to-identify restore points, allowing users to restore the system to its previous state. Restore points are created when a major system event occurs, such as the installation of an application or driver, and they are also created periodically (daily). In addition, users can create and name their own restore points at any time.

2. Which versions of Windows have the system recovery function?

Windows Me, Windows XP (Home and Professional), Windows Vista (all editions), Windows 7 (all editions), and Windows 8 (all editions). The following questions and answers are specific to Windows XP.

3. What is the difference between system recovery and file backup?

System recovery only monitors a set of core system files and certain types of application files (such as files with suffixes of exe or dll) to record the status of these files before changes; while backup tools are used to back up user personal data files to ensure Store a safety copy on local disk or other media. System recovery does not monitor or restore changes made to personal data files (for example, documents, graphics, email, etc.).

The system data contained in the restore point of System Recovery can only be restored within a period of time, and the backup performed by the backup tool can be restored at any time.

4.Does user need to turn on system recovery?

No need. Windows XP system recovery is automatically started, but at least 200M of free hard disk space is required. If the hard disk does not have 200M free space, the system recovery will be disabled automatically, and once there is enough space, it will be turned on automatically. By default, system recovery takes up to 12% of hard disk space. Its "Automatic Restore Point Space Management" will clear the oldest restore point, free up space and maintain the rolling security of system recovery.

5. Will system recovery degrade system performance?

will not. System recovery will not have a significant impact on system performance when monitoring system operating status. Creating a restore point is a very fast process, usually only a few seconds. Periodic system status checks (the default is once every 24 hours) are also performed only during system idle time, without disturbing the operation of any user programs.

6. Who has the right to use System Recovery?

Only users with administrator rights can use System Recovery to restore past system states or adjust system recovery parameter settings. However, the process of creating a restore point has nothing to do with whether the administrator is logged on. For example, when other users who are not administrators use the machine, system recovery will still create system checkpoints and event-driven checkpoints, but the user cannot use the recovery function, and only users with administrator rights have the right to restore the machine state.

7. Does the system restore protection of user personal data files such as WORD documents and emails?

Do not. System recovery does not monitor changes to user's personal data files such as documents, graphics, e-mails, and so cannot recover these files.

System recovery only monitors a set of core system files and certain specific types of application files (such as file suffixes such as exe and dll), and records the status of these files before the system changes. To view all protected file types, see "Monitored File Suffix" in the Platform SDK System Recovery section.

8. How does system recovery handle password issues?

Passwords not recovered: 1) Windows XP passwords and password problems prompt not to recover. This is to prevent the restore point from including an old password that the user has not remembered, which can cause confusion and inconvenience to the user. 2) IE and Content Advisor password and password problem prompts do not recover. The reason is the same as above.

Recovered passwords: 1) Recover passwords of web server-based applications such as Windows Messenger, AOL Messenger, QQ, etc. Recovering these old passwords will not cause users any trouble, because only the password backup is stored in the machine, and the actual password is stored in the Web server. System recovery just restores the old passwords stored locally by the application without actually changing the program password. The user still needs to log in to the server with the current password. 2) The domain and host passwords are similar to the above. Once the host reconnects with the domain, the old password in the cache will be upgraded to the current password again.

9. If reverting to an application before installation, does System Recovery automatically uninstall the program?

System recovery does not completely uninstall the application. Because system recovery only monitors and restores changes to specific types of files, such as changes to system files caused by installing the program, so if you want to completely remove all changes caused by installing an application and completely uninstall the application, the user first needs Use the "Add or Remove Programs" option in Control Panel to remove the program. What the system recovery does is to restore the system changes caused by the installation, including: 1) delete the monitored files added during the installation 2) restore the monitored system files changes 3) restore the registry Current value) 4) Unmonitored files and other files added or modified by the installation cannot be recovered and will not be deleted. For example, graphics files and text files created by the application will not be deleted. Modification of class files.

10. Why are some downloaded executable files deleted during recovery ?

If the downloaded file suffix is a monitored file type, these files will be lost if the restore point is before the download. If you don't want to lose these files, you can move them to the My Documents folder or other unmonitored hard disk area. In case useful download files are deleted during recovery, you can also get them back by undoing this recovery.

Users can manually create restore points using the system recovery wizard at any time. In addition, the system will automatically create a restore point when: 1) installing device drivers 2) installing applications using Windows Installer or Install Shield Pro 7.0 and above 3) using automatic upgrade for Windows XP upgrade 4) execution system Recovery operation (when performing a system recovery operation, a restore point is also created so that if necessary, the user can undo the recovery process) 5) Use the backup tool to restore data from the backup medium 6) Create a daily restore point every 24 hours

11. Can I keep a permanently available restore point?

Nope. The system recovery system does not support this function. Each restore point saves only the system changes since the last restore point was created, which can minimize space consumption and improve performance. All restore points are related to each other.

Therefore, to restore the machine from its current state to a previous state, all restore point records between these two restore points need to be available. For example, when the user attempts to restore the machine state from point D to point A, the system recovery requires the records of all changes at points C, B, and A.

If you want to make a restore point a permanent restore point, it will take a lot of space to store the entire restore point chain, which is very unrealistic. System Recovery has an "Automatic Restore Point Space Management" function that will automatically clear the oldest restore points and free up space. By default, the maximum age of a restore point is 90 days.

12. How much hard disk space does system recovery require ?

1) Hard disks larger than 4G. By default, the system recovery occupies 12% of the hard disk space.

2) Hard disks smaller than 4G. By default, the system recovery only takes up 400M space.

3) The user can adjust the space for system recovery at any time.

13. Migrate System Restore for Windows Server 2003

Users who have used Windows XP know that there is a very intimate and practical function in Windows XP-System Restore. This function can automatically create multiple restore points when the system is running normally. When a system problem occurs, it can help users to restore to a previous restore point very conveniently and quickly restore the system. However, in the so-called Windows XP server version of Windows 2003, Microsoft did not integrate this feature, which can not help but regret many users who like the system restore function. Migrate System Restore from Windows XP to Windows 2003! Please prepare a Windows XP installation disc first, and then follow me:

Step 1 Enter the Windows 2003 operating system. Insert the Windows XP installation CD into the CD-ROM drive and hold down the Shift key to cancel its automatic operation. Click the "Start Run" command, enter "cmd" in the run dialog box and press Enter to open the command prompt window. Enter "expand X: \ i386 \ sr.in_ C: \ sr.inf" at the command prompt and press Enter to extract the sr.in_ from the i386 directory of the Windows XP installation CD to the root directory of drive C, as shown 1 is shown. Among them, X refers to the drive letter of the CD-ROM drive. Users should modify it according to their actual situation.

Figure 1 Extract sr.inf file

Step 2 Open the explorer, right-click the sr.inf file just released in the root directory of the C drive, and select the "install" command to start copying files. During the installation process, the installation program will prompt you that some files cannot be found. At this time, click the "Browse" button in the prompt dialog box, locate the i386 directory of the Windows XP installation CD, and click the "OK" button .

Step 3 After the installation is complete, the system will give a "System Settings Change" prompt and ask to restart the computer. When restarting the computer, an error message will appear during the startup process. Don't bother, just click the "OK" button to cancel it.

Step 4 Click the "Start Run" command, type "regedit" in the run dialog box that opens and press Enter to open the Registry Editor. Expand [HKEY_LOCAL_MACHINE \ SOFT-

WARE \ Microsoft \ Windows NT \ CurrentVersion \ SvcHost]

Branch, find the multi-string value named "netsvcs" in the right window (if not, right-click in the right window and select "New Multi-String Value"), double-click to open "Edit Multi-String "Window, enter the following in the" Value data "text box (note: for the convenience of description, each item in this article is separated by a semicolon. In the actual input, each item should occupy a line, that is, after entering one After the entry, press the Enter key to continue to enter the next line):

AppMgmt; AudioSrv; Browser; CryptSvc; DMServer; EventSystem; HidServ; Ias; Iprip; Irmon; LanmanServer; LanmanWorkstation; Messenger; Netman; Nla; Ntmssvc; NWCWorkstation; Nwsapagent; Rasauto; Rasman; Remoteaccess; SulSec; Schups; School Sharedaccess; Themes; TrkWks; TrkSvr; W32Time; WZCSVC; Wmi; WmdmPmSp; winmgmt; wuauserv; BITS; ShellHWDetection; helpsvc; uploadmgr; WmdmP) SN; SRServic

After the input is completed, after checking that it is correct, click the "OK" button and close the Registry Editor.