如果您的Windows Vista或 7 计算机上没有还原点，则Windows可能不会自动创建还原点。有许多不同的问题会导致这种情况。

一个原因是硬盘驱动器上没有足够的可用空间来保存系统还原^{(System Restore)}文件。要解决此问题，请确保您的硬盘驱动器上至少有 300 MB 的可用空间（如果您的硬盘驱动器小于 300 MB 并且您运行的是Windows 7 ，则为 50 MB ）。

缺少还原点的另一个原因是任务计划程序存在问题。在开始解决此问题之前，请单击“开始^(Start)”按钮，然后在“开始搜索”框中键入^{(Start Search box)}Services.msc。检查以确保卷影服务^{(Volume Shadow Services)}正在运行。

运行任务计划程序^{(Task Scheduler)}。单击开始^(Start)按钮，然后键入任务计划程序^{(Task Scheduler)}并按Enter。展开任务计划程序库^{(Task Scheduler Library)}，然后选择Microsoft、Windows和SystemRestore。在顶部窗格中，单击名为SR的条目。在底部窗格中，单击“历史记录”^(History)选项卡以查看已记录的任何系统还原任务、警告和错误。^{(System Restore)}

右键单击SR文件，选择属性^(Properties)，然后单击触发器^(Triggers)选项卡。单击触发器，然后单击编辑^(Edit)。更改触发器，以便在您希望创建还原点时自动创建它。例如，您可以将每天上午 12:00 的触发器集编辑为计算机将运行的一天中的另一个时间。

单击条件^(Conditions)选项卡。取消选中仅当计算机空闲时才启动任务^{(Start the task only if the computer is idle for)}旁边的复选框。还取消选中仅当计算机使用交流电源时才开始任务^{(Start the task only if the computer is on AC power)}旁边的框。

解决缺少系统还原点^{(System Restore)}问题的另一种方法是使用系统文件检查器^{(System File Checker)}。单击^(Click)开始^(Start)按钮，然后在开始搜索框中键入cmd。右键单击cmd.exe，然后单击以管理员身份运行^{(Run as Administrator)}。在命令提示符处键入sfc/scannow允许系统文件检查器^{(System File Checker)}完成扫描和修复过程。

您可能会收到一条消息，提示Windows 资源保护^{(Windows Resource Protection)}发现损坏的文件，但无法修复其中的一些文件。如果发生这种情况，请在命令提示符处键入findstr /c:”[SR]” %windir%\logs\cbs\cbs.log >sfcdetails.txt并按Enter。

导航^(Navigate)到您的 windows/system32 文件夹并在记事本中打开sfcdetails.txt。单击Edit and Find，然后键入cannot repair member file以查看System File Checker无法修复的问题。

您也可以通过关闭系统还原^{(System Restore)}然后重新打开来解决此问题。了解如何在 Windows Vista^{(in Windows Vista)}和Windows 7中禁用和启用^{(in Windows 7)}系统还原^{(System Restore)} 。享受！

Fix Missing System Restore Points in Windows Vista and 7

If you have no restore points on your Windоws Vista or 7 computer, then Windows may not be creating the restore points automatically. There are a number of different problems that can cause thіs.

One cause is a lack of sufficient free space on your hard drive to save the System Restore files. To remedy this problem, make sure you have at least 300 MB of free space on your hard drive (50 MB if your hard drive is smaller than 300 MB and you’re running Windows 7).

Another cause of missing restore points is a problem with the task scheduler. Before you start troubleshooting this issue, click the Start button, then type Services.msc in the Start Search box. Check to make sure that Volume Shadow Services is running.

Run Task Scheduler. Click the Start button, then type Task Scheduler and press Enter. Expand the Task Scheduler Library, then select Microsoft, Windows and SystemRestore.  In the top pane click the entry named SR.  In the bottom pane, click the History tab to see any System Restore tasks, warnings and errors that have been recorded.

Right click the SR file, select Properties and then click the Triggers tab. Click a trigger, then click Edit. Change the trigger so that it creates a restore point automatically when you want it to be created. For example, you could edit the trigger set for 12:00 am daily to another time of day when the computer will be running.

Click the Conditions tab. Uncheck the check box beside Start the task only if the computer is idle for. Also uncheck the box beside Start the task only if the computer is on AC power.

Another way to fix problems with missing System Restore Points is by using the System File Checker. Click the Start button, then type cmd in the start search box. Right-click cmd.exe and click Run as Administrator. Type sfc/scannow at the command prompt. Allow the System File Checker to complete the scan and repair process.

You may receive a message that Windows Resource Protection found corrupt files but was unable to fix some of them. If this occurs, type findstr /c:”[SR]” %windir%\logs\cbs\cbs.log >sfcdetails.txt at the command prompt and press Enter.

Navigate to your windows/system32 folder and open sfcdetails.txt in Notepad. Click Edit and Find, then type cannot repair member file to see the problems that the System File Checker was unable to repair.

You can also fix this problem by turning System Restore off, then turning it back on again. Learn how to disable and enable System Restore in Windows Vista and in Windows 7. Enjoy!

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