系统还原^{(System Restore)}是^{(case something)}Windows内置的一项功能，它会定期创建“还原点”或系统文件和/或用户文件的备份，以便在出现问题时可以将系统还原到以前的状态。

通常，Windows会在某些事件之前自动创建这些系统还原点，例如安装新软件、更新驱动程序、安装^{(restore point)}Windows更新等。如果这些事件均未发生，Windows将每 7 天创建一个还原点。^{(restore point)}

在文件方面，系统还原会在修改^{(System Restore)}文件或文件夹^{(file or folder)}时保存一份副本，但仅限于创建还原点^{(restore point)}时。然后，您只需右键单击文件或^{(file or folder)}文件夹即可恢复文件或文件夹^{(file or folder)}的先前版本。

不要将系统还原^{(system restore)}视为文件和文件夹的备份解决方案^{(backup solution)}，因为它不如使用Windows 备份^{(Windows backup)}或第三方备份程序^{(backup program)}强大。

启用系统还原

默认情况下，系统还原^{(System Restore)}应该已经在Windows上启用，除非它被手动关闭。要启用系统还原^{(System Restore)}，我们需要打开系统保护^{(System Protection)}选项卡。您可以通过以下两种方式之一执行此操作。请注意，以下说明适用于Windows Vista、7、8 和 10。

单击开始^(Start)按钮，然后输入系统还原^{(system restore)}。您可能会得到几个不同的选项，您要单击的选项是Create a restore point。

如果系统还原^{(System Restore)}被禁用，您将在硬盘驱动器上每个分区的保护列中看到^(Protection)关闭。^(Off)

请注意，如果您的计算机有多个硬盘驱动器，您可能会在“保护设置”^{(Protection Settings)}下看到所有这些驱动器。Windows通常安装在C: (System)下，所以点击它来选择它。然后单击配置^(Configure)按钮。

单击打开系统保护^{(Turn on system protection)} 单选按钮^{(radio button)}，然后将磁盘空间使用^{( Disk Space Usage)}下的滑块调整为 3% 到 5% 之间的值。请注意，此值将基于分区的大小，而不是硬盘的大小。

系统还原^{(System Restore)}的推荐磁盘空间使用^{(Disk Space Usage)}量 

这意味着您可能有一个 1 TB 的硬盘，但分为C 和 D 分区^{(C and D partition)}。C 是安装Windows的^(Windows)系统分区^{(system partition)}，可能只有 100 GB，其余位于D 分区^{(D partition)}。如果您在C 盘上启用^{(C drive)}系统还原^{(System Restore)}，则 3% 将是 3 GB，5% 将是 5 GB。

如果你只有一个巨大的C 分区^{(C partition)}，它是整个驱动器的大小，那么 1TB 的 3% 将是高达 30 GB，这是巨大的。在这些类型的情况下，只需将其设置为 1% 或 2%。

无论您使用什么百分比，只要确保该值至少大于 1000 MB 或 1 GB。请注意，每个 GB 将能够保存 1 到 3 个还原点，具体取决于您在该分区上的内容。

我推荐 3 GB 到 10 GB 之间的值用于系统还原^{(system restore)}，因为它在某些情况下非常方便。您拥有的越多，就越有可能从问题中恢复您的计算机。

如果您想减少系统还原^{(space system restore)}使用的空间量，只需将滑块调整为较低的百分比。此外，您可以单击删除^(Delete)按钮来删除驱动器的所有当前还原点。这样，您可以保持启用系统保护，但如果您的硬盘^{(system protection)}空间^{(disk space)}不足，请清理一些空间。

禁用系统还原

禁用系统还原^{(System Restore)}就像启用它一样简单。单击^(Click)开始，输入系统还原^{(system restore)}，然后单击创建^(Start)还原点^{( Create a restore point)}。

在列表中选择要禁用保护的硬盘驱动器，然后单击配置^(Configure)。在下一个屏幕上，选择关闭系统保护^{(Turn off system protection)}或禁用系统保护^{(Disable system protection)}。

单击确定，系统还原^{(Click OK and system restore)}将被关闭。您还会收到一条消息，指出将从磁盘中删除所有还原点，并且不会创建新的还原点。

如前所述，我不建议关闭系统保护^{(system protection)}，除非您知道自己在做什么并且已经有另一个备份解决方案^{(backup solution)}。如果您有任何问题，请随时发表评论。享受！

How to Enable or Disable System Restore in Windows

System Restore is a feature built into Windows that periodically creates “reѕtore points” or bаckups of system fileѕ and/or user files ѕo that the system can be restored to a prevіous state in case something goes wrong.

Normally, Windows will create these system restore points automatically before certain events, i.e., installing new software, updating a driver, installing Windows updates, etc. If none of these events occur, Windows will create a restore point every seven days.

In terms of files, System Restore will save a copy of a file or folder when it is modified, but only when a restore point is created. You can then restore a previous version of the file or folder by simply right-clicking on the file or folder.

Do not think of system restore as a backup solution for your files and folders because it is not nearly as robust as using Windows backup or a third-party backup program.

Enable System Restore

By default, System Restore should already be enabled on Windows unless it was turned off manually. To enable System Restore, we need to open the System Protection tab. You can do this in one of two ways. Note that the below instructions will work on Windows Vista, 7, 8 and 10.

Click on the Start button and then type in system restore. You’ll probably get a couple of different options and the one you want to click on is Create a restore point.

If System Restore is disabled, you’ll see Off listed in the Protection column for each partition on the hard drive.

Note that if your computer has multiple hard drives, you might see all of them listed under Protection Settings. Windows is normally installed under C: (System), so click on that to select it. Then click on the Configure button.

Click on the Turn on system protection radio button and then adjust the slider under Disk Space Usage to a value between 3 and 5 percent. Note that this value is going to be based on the size of the partition, not the size of the hard disk.

Recommended Disk Space Usage for System Restore

This means you might have a 1 TB hard drive, but split into a C and D partition. C is the system partition where Windows is installed and might only be 100 GB and the rest is on the D partition. If you enable System Restore on the C drive, then 3% will be 3 GB and 5% will be 5 GB.

If you just have one huge C partition that is the size of the entire drive, then 3% of 1TB would be a whopping 30 GB, which is huge. In these types of cases, just set it to 1% or 2%.

Whatever percentage you use, just make sure the value is greater than 1000 MB or 1 GB as a minimum. Note that each GB will be able to hold anywhere from 1 to 3 restore points, depending on what you have on that partition.

I recommend a value between 3 GB and 10 GB for system restore as it can prove to be very handy in certain situations. The more you have, the more likely you’ll be able to recover your computer from a problem.

If you want to reduce the amount of space system restore is using on your system, just adjust the slider to a lower percentage. In addition, you can click the Delete button to remove all of the current restore points for the drive. This way, you can keep system protection enabled, but clear up some space if you are running out of hard disk space.

Disable System Restore

Disabling System Restore is just as easy as enabling it. Click on Start, type in system restore and then click on Create a restore point.

Select the hard drive you want to disable protection for in the list and then click Configure. On the next screen, select either Turn off system protection or Disable system protection.

Click OK and system restore will be turned off. You’ll also get a message stating that all restore points will be deleted from the disk and new ones will not be created.

As previously mentioned, I do not recommend turning off system protection unless you know what you are doing and already have another backup solution in place. If you have any questions, feel free to post a comment. Enjoy!

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