由于系统意外崩溃、关机或电源故障而导致PowerPoint工作损失数小时的情况并不少见。微软^(Microsoft)知道这一点，这就是该程序附带AutoRecover的原因。该功能可帮助您检索未保存的PowerPoint演示文稿。

本教程将教您如何在Windows和 macOS 中使用 Microsoft ^(Windows)PowerPoint的自动恢复^{(AutoRecover)}功能，包括恢复丢失或删除的PowerPoint演示文稿的其他技巧。

在 Windows 上 恢复未保存的PowerPoint 演示文稿^{(Presentations)}

每当您在适用于 Windows 10 和 11 的 Microsoft PowerPoint^{(Microsoft PowerPoint for Windows 10 and 11)}中处理演示文稿时，该程序的内置自动恢复^{(AutoRecover)}功能会每 10 分钟定期备份到临时文件一次。

如果您由于意外问题而忘记保存Microsoft PowerPoint文档，您可以将其恢复。^{(Microsoft PowerPoint)}但不能保证它可能包含最新的更改。

默认情况下，当您在系统或应用程序崩溃后重新启动PowerPoint时，^(PowerPoint)自动恢复^{(AutoRecover)}会打开未保存的演示文稿。如果您看到“已恢复的未保存文件”^{(Recovered Unsaved File)}横幅，请选择内部的“保存”^(Save)按钮以永久保存它。

在Microsoft Office 2021和早期版本的PowerPoint中，文档恢复窗格应显示在^{(Document Recovery)}PowerPoint窗口的左侧，让您选择要恢复的文件。

如果没有发生这种情况，您可以通过以下步骤 查看自动恢复文件夹：^{(AutoRecover)}

1. 打开^(Open) PowerPoint并在“开始”屏幕上选择^{(Start Screen)}“打开”^(Open)。
2. 选择恢复未保存的演示文稿^{(Recover Unsaved Presentations)}按钮。

1. 在文件资源管理器^{(File Explorer)}弹出窗口中，打开与要恢复的 PPT文件相关的文件夹。^(PPT)
2. 选择文件并选择“打开”。

1. 查看演示文稿并将其保存到您的电脑硬盘上。

如果“恢复未保存的演示文稿”^{(Recover Unsaved Presentations)}选项不可见，或者在您执行任何操作之前PowerPoint反复崩溃，请访问该程序的^(PowerPoint)“自动恢复”文件位置并通过^{(AutoRecover)}“文件资源管理器”^{(File Explorer)}检索演示文稿。

1. 打开文件资源管理器。
2. 将以下内容复制并粘贴到地址栏中，替换与您的Windows用户名。然后，按 Enter：

C:Users<用户名>AppDataRoamingMicrosoftPowerPoint

1. 将要恢复的未保存的PPT^(PPT)文件复制到另一个目录，然后双击在PowerPoint中打开它。

要提高自动恢复备份^{(AutoRecover)}PowerPoint 演示文稿的频率并提高检索最近未保存的更改的机会，您必须：

1. 选择“文件”^(File)选项卡，然后选择“选项”^(Options)（或“更多”> “选项^(Options)”）。

1. 选择“PowerPoint选项”^(Options)侧栏上的“保存”^(Save)类别。
2. 修改每 x 分钟 保存自动恢复^{(Save AutoRecover)}信息旁边的框。

例如，如果您希望PowerPoint^(PowerPoint)恢复工具每分钟备份一次未保存的更改， 请输入值 1 。

在 macOS 上 恢复未保存的PowerPoint文件^(PowerPoint)

与在Windows上一样，自动恢复^{(AutoRecover)}在适用于 macOS 的Microsoft PowerPoint上可用。如果您正在Mac^(Mac)上处理PowerPoint演示文稿并遇到突然崩溃或关机，您应该能够使用它来恢复未保存的更改并防止数据丢失。

只需重新打开PowerPoint即可。自动恢复^{(AutoRecover)}应该自动重新打开您上次处理的演示文稿，从而允许您永久保存更改。

假设这没有发生。只是：

1. 打开^(Open)“主页”^(Home)按钮并选择“打开”^(Open)。
2. 选择恢复未保存的演示文稿^{(Select Recover Unsaved Presentations)}。
3. 双击^{(Double-click)}要恢复的 PPTX文件。

如果“恢复未保存的演示文稿”^{(Recover Unsaved Presentations)}按钮不可见，请手动访问 PowerPoint 的“自动恢复”临时文件夹并通过^{(AutoRecover)}Finder检索演示文稿。

1. 打开Finder，然后选择菜单栏上的 Go > Go

1. 复制以下路径并按回车键：

〜/ Library / Containers / com.Microsoft.Powerpoint / Data / Library / Preferences / AutoRecovery

1. 将要恢复的文件复制到其他位置。

Mac的手动恢复的自动恢复^{(AutoRecover)}备份没有指定的文件类型，因此您必须执行以下步骤才能在PowerPoint中查看它们。

1. 右键单击自动恢复的PPTX文件，然后选择打开方式^(Open)> 其他。

1. ^{(Select All Applications)}在“启用”^(Enable)旁边的下拉菜单中选择“所有应用程序”。
2. ^{(Select Microsoft PowerPoint)}在应用程序列表中选择 Microsoft PowerPoint ，然后选择“打开”^(Open)。

默认情况下，自动恢复^{(AutoRecover)}每 10 分钟保存一次演示文稿。如果您想增加恢复最近更改的机会：

1. 打开PowerPoint并在菜单栏上 选择PowerPoint > Preferences

1. 选择保存。

1. 修改每 x 分钟保存自动恢复^{(Save AutoRecover)}信息旁边的框并输入一个新值，例如 1 以使自动恢复^{(AutoRecover)}每分钟备份您的演示文稿。

恢复PowerPoint文件的其他方法：

除了未保存的PowerPoint演示文稿之外，您可能还需要时不时地处理放错位置或删除的PowerPoint文件。^(PowerPoint)发生这种情况时，您可以尝试以下几种方法来恢复它们。

检查 PowerPoint 的最近列表

如果您忘记了PPTX文件的位置，只需检查^(PPTX)“开始”屏幕^{(Start Screen)}上PowerPoint 的“最近使用”^(Recent)列表即可。如果演示文稿已在此处列出，请选择将其打开。

使用 Windows 搜索或 Spotlight

您的 PC 或Mac会保留其内部存储中所有内容的索引。如果您记得丢失的演示文稿的文件名（甚至是其中的一部分），请尝试通过Windows 搜索^{(Windows Search)}或Spotlight 搜索^{(Spotlight Search)}进行搜索。

检查回收站或垃圾箱

Windows 和 macOS 会将已删除的项目存储 30 天，因此，如果您找不到演示文稿，请检查回收站^{(Recycle Bin)}或垃圾箱。^(Trash)如果PPTX文件在里面，您可以将其恢复到原来的位置。

使用文件历史记录或时间机器

如果您的 PC 或Mac设置为备份到外部硬盘驱动器，您应该能够恢复丢失的PowerPoint文件。^(PowerPoint)了解如何使用文件历史记录^{(deleted files or previous versions using File History)}或时间机器^{(Time Machine)}检索已删除的文件或以前的版本。

使用文件恢复工具

如果所有其他方法均失败，请使用数据恢复软件来检索已删除的PowerPoint文件。查看我们适用于 PC 和 Mac 的顶级文件恢复程序^{(top file recovery programs for the PC and Mac)}列表。

不要忘记^(Forget)保存或自动保存您的演示文稿

丢失未保存的PowerPoint演示文稿可能会令人沮丧，但使用自动恢复^{(AutoRecover)}，您可以恢复您的工作，而不必从头开始。

无论如何，最好不要碰运气，所以请记住经常保存您的工作。如果您更喜欢将演示文稿存储在OneDrive上，请使用 Microsoft Office 中的自动保存功能^{(use the AutoSave feature in Microsoft Office)}以避免丢失数据。

How to Recover Unsaved PowerPoint Presentations

It’s not υncommon to lose hoυrs of work in PowerPoint because of an unexpected system crash, shutdown, оr power failure. Microsoft knows that, which is why the program comes with AutоRecover. It’s a fеature that helps you retrieve unsaved PowerPoint presentations.

This tutorial will teach you how to use Microsoft PowerPoint’s AutoRecover feature in Windows and macOS, including other tips to recover lost or deleted PowerPoint presentations.

Recover Unsaved PowerPoint Presentations on Windows

Whenever you work on a presentation in Microsoft PowerPoint for Windows 10 and 11, the program’s built-in AutoRecover functionality makes periodic backups to a temporary file once every 10 minutes.

If you forgot to save a Microsoft PowerPoint document because of an unexpected issue, you can get it back. There’s no guarantee it may contain the most recent changes, though.

By default, AutoRecover opens the unsaved presentation when you relaunch PowerPoint after a system or application crash. If you see a Recovered Unsaved File banner, select the Save button inside to save it permanently.

In Microsoft Office 2021 and earlier versions of PowerPoint, a Document Recovery pane should show up to the left of the PowerPoint window, letting you pick the file you want to recover.

If that does not happen, you can view the AutoRecover folder with the following steps:

1. Open PowerPoint and select Open on the Start Screen.
2. Select the Recover Unsaved Presentations button.

1. On the File Explorer pop-up, open the folder related to the PPT file you want to restore.
2. Select the file and choose Open.

1. Review the presentation and save it to your PC’s hard drive.

If the Recover Unsaved Presentations option is not visible or PowerPoint repeatedly crashes before you can do anything, visit the program’s AutoRecover file location and retrieve the presentation via File Explorer.

1. Open File Explorer.
2. Copy and paste the following into the address bar, replacing <username> with your Windows user name. Then, press Enter:

C:\Users\<username>\AppData\Roaming\Microsoft\PowerPoint

1. Copy the unsaved PPT file you want to recover to another directory, then double-click to open it in PowerPoint.

To increase the frequency with which AutoRecover backs up your PowerPoint presentations and improve the chances of retrieving the most recent unsaved changes, you must:

1. Select the File tab and choose Options (or More > Options).

1. Select the Save category on the PowerPoint Options sidebar.
2. Modify the box next to Save AutoRecover information every x minutes.

For example, enter a value of 1 if you want the PowerPoint recovery tool to back up unsaved changes every minute.

Recover Unsaved PowerPoint Files on macOS

Like on Windows, AutoRecover is available on Microsoft PowerPoint for macOS. If you’re working on a PowerPoint presentation on a Mac and experience a sudden crash or shutdown, you should be able to use it to recover the unsaved changes and prevent data loss.

Just re-open PowerPoint. AutoRecover should automatically re-open the presentation you were last working on, allowing you to save the changes permanently.

Suppose that doesn’t happen. Just:

1. Open the Home button and choose Open.
2. Select Recover Unsaved Presentations.
3. Double-click the PPTX file you want to recover.

If the Recover Unsaved Presentations button is not visible, manually visit PowerPoint’s AutoRecover temp folder and retrieve the presentation via Finder.

1. Open Finder and select Go > Go to Folder on the menu bar.

1. Copy the following path and press Return:

~/Library/Containers/com.Microsoft.Powerpoint/Data/Library/Preferences/AutoRecovery

1. Copy the file you want to recover to a different location.

Manually recovered AutoRecover backups for the Mac do not have a specified file type, so you must go through the following steps to view them in PowerPoint.

1. Right-click the auto-recovered PPTX file and select Open with > Other.

1. Select All Applications on the drop-down menu next to Enable.
2. Select Microsoft PowerPoint within the list of applications and choose Open.

By default, AutoRecover saves your presentations every 10 minutes. If you want to increase the chances of recovering the most recent changes:

1. Open PowerPoint and select PowerPoint > Preferences on the menu bar.

1. Select Save.

1. Modify the box next to Save AutoRecover information every x minutes and enter a new value—e.g., 1 to make AutoRecover back up your presentation every minute.

Other Methods to Recover PowerPoint Files:

Unsaved PowerPoint presentations aside, you might have to deal with misplaced or deleted PowerPoint files every now and then. When that happens, here are several ways you can try to get them back.

Check PowerPoint’s Recents List

If you can’t remember the location of a PPTX file, just check PowerPoint’s Recent list on the Start Screen. If the presentation is listed there, select to open it.

Use Windows Search or Spotlight

Your PC or Mac keeps an index of whatever’s in its internal storage. If you can remember the file name of a lost presentation (or even part of it), try searching for it through Windows Search or Spotlight Search.

Check the Recycle Bin or Trash

Windows and macOS store deleted items for 30 days, so check the Recycle Bin or Trash if you can’t find a presentation. If the PPTX file is inside, you can restore it to its original location.

Use File History or Time Machine

You should be able to recover a lost PowerPoint file if your PC or Mac is set to back up to an external hard drive. Learn how to retrieve deleted files or previous versions using File History or Time Machine.

Use a File Recovery Tool

If all else fails, use data recovery software to retrieve deleted PowerPoint files. Check our list of top file recovery programs for the PC and Mac.

Don’t Forget to Save or AutoSave Your Presentations

Losing an unsaved PowerPoint presentation can be a frustrating experience, but with AutoRecover, you can recover your work and stop having to start over from scratch.

Regardless, it’s best not to leave things to chance, so remember to always save your work frequently. If you prefer storing your presentations on OneDrive, use the AutoSave feature in Microsoft Office to avoid lost data.

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