如果您尝试升级您的 Windows PC，但由于各种恼人的原因而失败了几次，您可能已经意识到有一个名为Windows.old(Windows.old)的文件夹占用了大量磁盘空间。
(Windows.old)每当您使用已安装的先前版本的操作系统执行Windows安装时，都会自动生成(Windows)Windows.old 。它在Windows(Windows)分区的根目录中创建此Windows.old文件夹，并存储以前的操作系统文件和数据。
如果您尝试从Windows Vista升级到 Windows 7 或从 Windows 7 升级到Windows 10并且失败，您始终可以安全地恢复到Windows Vista或 7。唯一的问题是每次安装失败时，先前操作系统的另一个副本都会复制到Windows.old中。
因此，如果您的升级安装失败 2 或 3 次，Windows.old文件夹会变得非常大，非常快！最重要的是，一旦您启动并使用较新版本的Windows运行，该文件夹不会自动删除，因此您必须自己摆脱它。
注意：删除 Windows.old 文件夹将导致您无法恢复到以前安装的操作系统。您将不得不坚持使用新版本的 Windows。此外，当您为 Windows 10 安装那些两年一次的大型更新时，会创建 Windows.old 文件夹。 (Note: Removing the Windows.old folder will result in your inability to be able to revert back to the previous OS installed. You will have to stick with the new version of Windows. Also, the Windows.old folder gets created when you install those big bi-annual updates for Windows 10. )
删除 Windows.old 文件夹
那么如何摆脱文件夹呢？好吧，您必须使用磁盘清理(Disk Cleanup)实用程序！以下是如何去做。第一种方法将描述如何删除Windows 7/8/10Windows.old文件夹。如果您仍在Windows Vista中，请按照第二组说明进行操作。
Windows 7/8/10 说明
如果您使用的是Windows 7/8/10并且想要删除Windows.old文件夹，则该过程相当简单。首先(First)，通过“开始”菜单(Start Menu)打开“磁盘清理(Disk Cleanup)” （单击“开始(Start)”并输入磁盘清理），当对话框弹出时，选择上面有 .old 文件的驱动器，然后单击“确定”。这通常只是 C 盘。如果这是您计算机上唯一的驱动器，它甚至不会要求您选择。
系统将执行扫描，并弹出另一个对话框，其中包含选择。现在单击 底部的“清理系统文件”按钮。(Cleanup system files)
现在再次选择上面有 .old 文件的驱动器。系统将对需要清理的文件执行第二次扫描，这将花费更长的时间。
最后，将弹出一个对话框，其中包含另一组复选框。向下滚动(Scroll)，直到找到一个标记为旧版本的 Windows(Older versions of Windows )或以前的 Windows 安装( Previous Windows installations)，然后单击确定(OK)。
如您所见，以前安装的Windows(Windows)通常会占用大量数据。
Windows Vista 说明
单击开始，然后单击所有程序(All Programs)、附件(Accessories)、系统工具(System Tools)，然后单击磁盘清理( Disk Cleanup)。确保右键单击Disk Cleanup并选择Run As Administrator。
在“磁盘清理选项(Disk Cleanup Options)”对话框中，确保选中“此计算机上所有用户的文件”(Files from all users on this computer)框。
然后在“磁盘清理 - 驱动器(Disk Cleanup – Drive) 选择”对话框中，单击(Selection)Windows.old文件夹所在的硬盘，然后单击“确定”。然后系统将扫描驱动器以查找不必要的文件。
单击(Click)“磁盘清理(Disk Cleanup)”选项卡并查找显示“以前的 Windows 安装(Previous Windows installations)”的复选框。检查它并单击确定。然后在出现提示时单击删除文件。( Delete Files)
就是这样！那应该永远摆脱那些占用空间的 .old 文件夹！如果您在摆脱它们时遇到任何问题，请在此处发表评论，我会尽力提供帮助。享受！
How to Delete the Windows.old folder in Windows 7/8/10
If you have trіed upgrading your Windows PC and it has failed a couple оf times due to various annoying reasons, you’ve probаbly come to realize that there is a large chυnk of disk sрace being eaten up by a folder called Windows.old.
Windows.old is automatically generated whenever you perform an installation of Windows with a previous version of the OS already installed. It creates this Windows.old folder in the root of the Windows partition and stores the previous operating system files and data.
In case you try to upgrade from Windows Vista to Windows 7 or Windows 7 to Windows 10 and it fails, you can always revert back to Windows Vista or 7 safely. The only issue with this is that every time the install fails, another copy of the previous OS is copied into Windows.old.
So, if your upgrade install failed 2 or 3 times, that Windows.old folder can become very large, very fast! On top of that, the folder is not automatically deleted once you are up and running with the newer version of Windows, so you have to get rid of it yourself.
Note: Removing the Windows.old folder will result in your inability to be able to revert back to the previous OS installed. You will have to stick with the new version of Windows. Also, the Windows.old folder gets created when you install those big bi-annual updates for Windows 10.
Remove Windows.old Folder
So how do you get rid of the folder? Well, you have to use the Disk Cleanup utility! Here’s how to go about it. The first method will describe how to delete the Windows.old folder on Windows 7/8/10. If you are in Windows Vista still, follow the second set of instructions.
Windows 7/8/10 Instructions
If you are in Windows 7/8/10 and want to delete the Windows.old folder, the process is fairly straightforward. First, open Disk Cleanup via the Start Menu (click Start and type in disk cleanup) and when the dialog pops up, choose the drive that has the .old files on it and click OK. This is normally just the C drive. If that’s the only drive on your computer, it won’t even ask you to choose.
The system will perform a scan and another dialog will pop up with the selection. Now click on the button Cleanup system files button at the bottom.
Now choose the drive again that has the .old files on it. The system will perform a second scan of files that need to be cleaned up and will take a bit longer.
Finally, a dialog will pop up with another set of checkboxes. Scroll down until you find one labeled Older versions of Windows or Previous Windows installations and click OK.
As you can see, it’s normally quite a large amount of data that gets taken up by previous installations of Windows.
Windows Vista Instructions
Click on Start, then All Programs, Accessories, System Tools, and then Disk Cleanup. Make sure you right-click on Disk Cleanup and choose Run As Administrator.
In the Disk Cleanup Options dialog, make sure to check the Files from all users on this computer box.
Then in the Disk Cleanup – Drive Selection dialog, click on the hard disk where the the Windows.old folder is and click OK. The system will then scan the drive for unnecessary files.
Click on the Disk Cleanup tab and look for a checkbox that says Previous Windows installations. Check it and click OK. Then click Delete Files when prompted.
That’s it! That should get rid of those space-hogging .old folders forever! If you have any problems getting rid of them, post a comment here and I’ll try to help. Enjoy!
