Because Windows system restore operation is very simple and can solve most system failures, so many friends like to use this feature. However, when performing a system restore operation, there may be reasons for the failure to complete the restore operation for one reason or another, and some friends are helpless.
Yes, some friends think that after creating a system restore point, everything will be fine. In fact, the created restore point is easy to be lost in some cases. If you execute "Disk Cleanup", if it is in the program window. In the "Other Options" window, click the "Clean" button in the "System Restore" column, then the system will only retain the restore point that was created last time, and other restore points created previously will be lost.
In addition, many friends think that deleting the system disk System Volume Information_restore{9E994495-CB58-480C-BCD9-7ECD6C95CA2D} directory RPX (items "X" is a number) folder can be deleted at a certain time The restore point (the System Volume Information folder is hidden) is not correct.
Because System Restore is a change basic trace tool, each restore point it creates stores changes that occurred after the previous restore point was created, which will reduce disk space waste and improve performance. Therefore, there is a dependency point between all the restore points. If the older RPX folder is deleted, the system changes will be lost when the restore point was created during the system restore, and the system restore cannot be performed correctly.
It seems that you have to be careful when cleaning up files and deleting system restore points. Also, be careful when using some of the junk file cleanup features provided by the optimization software. Check to see if the system restore point is included in the scan options. If you have the best option, cancel this option. Also, be aware that all (including recently created) restore points will be cleared when System Restore is temporarily turned off. Therefore, when you re-enable System Restore, it is a good idea to manually create a restore point in the System Restore program.
The system will also intelligently delete some old restore points. By default, there is 12% free disk space for storing restore points (as shown). If the saved restore point exceeds this space, the system will use FIFO (first in/first out) storage, ie new The restore point will overwrite the older restore point.
In addition, if the system restore partition where there is no available space, System Restore will automatically remove all restore points to free up more disk space, which will result in the loss of system restore point.
Drive Settings If you do not reduce the system space for saving restore points and ensure that there is enough free space on the partition, you can avoid the loss of restore points caused by space problems. This is a prerequisite, but it does not mean that the restore point is not completely lost. Because by default, restore points saved for more than 90 days will be automatically cleared by the system. Although we can manually modify this value, I personally think that the 90-day time limit is basically enough. In this case, the safest way is to backup the restore point. This backup can be resolved by backing up the System Volume Information folder in the root directory. If it is an NTFS partition, you also need to add the access permission for the "Administrators" group to the System Volume Information folder to "Full Control". In addition, if you compress the backup directly using a compression tool (such as WinRAR or WinZip), you will get an error. If it is a dual system, you can perform backup operations under other systems. Sometimes the restore point is intact, but the virus real-time monitor installed on the machine cannot restore the virus in the restore point during the restore, and it cannot be restored. In this case, it is best to kill and then restore. If you can't kill the virus and need to restore it, you can turn off the anti-virus software real-time monitoring program and then restore the system. In addition, if you are unable to enter Windows to perform a system restore, you can go to safe mode; if you are not in install mode, you can try to execute "%systemroot%system32 estore strui." in the secure mode with the command line or in the system recovery console. The exe command to open the system restore program for system restore. There are many reasons why system restore can not be performed. For example, the system restore function may be lost. At this time, you can enter the WindowsINF directory of the system disk, then right-click the sr.inf file and click "Install", and finally insert the system installation CD and Prompt to reinstall. In addition, if you stop the System Restore Service service, you will not be able to perform a system restore. Friends can analyze and solve according to the actual situation.