一些 PC 用户报告说，在他们启用 OneDrive Files On-Demand功能后，间歇性地，当他们尝试从SharePoint打开文件或将任何文件导入/下载到他们的 Windows 10 设备时，他们会收到消息错误 0x8007017F，云同步引擎无法验证下载的数据^{(Error 0x8007017F, The cloud sync engine failed to validate the downloaded data)}。这篇文章为这个OneDrive 错误^{(OneDrive error)}提供了最合适的解决方案。

受影响的用户进一步报告说，PDF^(PDFs)似乎可以打开，但Office文档使用^(Office)TRY AGAIN、SKIP或CANCEL选项抛出错误- 但是，多次单击TRY AGAIN按钮（2-10）最终会打开文件；^{(TRY AGAIN)}这并不理想，因为它更像是一种解决方法而不是解决方案。因此，如果您需要永久修复，请继续下面的帖子。

OneDrive 错误 0x8007017F：云同步引擎无法验证下载的数据

显然，在从CLOUD检索时， Windows 10操作系统和CLOUD验证/移交过程之间出现了故障。

因此，如果您遇到此问题，您可以尝试以下我们推荐的解决方案（不分先后顺序），看看是否有助于解决问题。

1. 重置 OneDrive 客户端
2. 使用网络版 OneDrive
3. 取消链接并重新链接 OneDrive 帐户
4. 切换到替代云存储提供商^{(Cloud Storage Provider)}

让我们看一下关于列出的每个解决方案所涉及的过程的描述。

1]重置OneDrive客户端

解决此问题应采取的第一个操作是重置 OneDrive^{(reset OneDrive)}。如果这不能解决问题，请尝试下一个解决方案。

2]使用网络版OneDrive

您可以尝试使用您的Microsoft帐户登录 Web 版OneDrive ，而不是桌面客户端，然后直接下载或打开您想要的文件。

3]取消^(Unlink)链接并重新链接OneDrive帐户

请执行下列操作：

• 右键单击^{(Right-click)}通知区域/系统托盘中的 OneDrive 图标（如果不存在，请单击 V 形以查看隐藏的图标），然后 从菜单中选择设置 。^(Settings )
• 选择 帐户^(Account) 选项卡。
• 单击 取消链接此 PC ^{(Unlink this PC )}按钮。
• 接下来，使用您的凭据登录。
• 选择OneDrive文件夹的位置以重新链接您的帐户。

4]切换^(Switch)到替代云存储提供商^{(Cloud Storage Provider)}

此问题可能是由错误引起的。在这种情况下，受影响的用户可以暂时切换到替代云存储提供商，直到^{(alternative cloud storage provider)}微软^(Microsoft)修复该错误。

希望这可以帮助！

The cloud sync engine failed to validate the downloaded data

Sоme PC users are reporting that after theу have enabled the OneDrive Filеs On-Demаnd feature, intermittently, when they try to open files from SharePoint or import/download any filе to their Windows 10 device, they receivе the mеssage Error 0x8007017F, The cloud sync engine failed to validate the downloaded data. This post offers the most suitable solutions to this OneDrive error.

Affected users further reported that PDFs seem to open, but Office documents throw the error with the TRY AGAIN, SKIP or CANCEL option – however, clicking TRY AGAIN button multiple times (2-10), ultimately gets the file to open; this is not ideal, since it’s more of a workaround than a solution. So, if you need a permanent fix, continue with the post below.

OneDrive Error 0x8007017F: The cloud sync engine failed to validate the downloaded data

Clearly, something is failing between the Windows 10 OS and the CLOUD validation/hand-off process when retrieving from the CLOUD.

So, if you’re faced with this issue, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.

1. Reset OneDrive client
2. Use the web version of OneDrive
3. Unlink and relink OneDrive account
4. Switch to an alternative Cloud Storage Provider

Let’s take a look at the description of the process involved concerning each of the listed solutions.

1] Reset OneDrive client

The first action you should take to resolve this issue is to reset OneDrive. If this doesn’t fix the issue, try the next solution.

2] Use the web version of OneDrive

Instead of the desktop client, you can try logging into the web version of OneDrive with your Microsoft account and then directly download or open the files you want.

3] Unlink and relink the OneDrive account

Do the following:

• Right-click on the OneDrive icon (if not present, click the chevron to see hidden icons) in the notification area/system tray and select Settings from the menu.
• Select the Account tab.
• Click on the Unlink this PC button.
• Next, sign in with your credentials.
• Select the location of the OneDrive folder to relink your account.

4] Switch to an alternative Cloud Storage Provider

This issue could be caused by a bug. In which case, affected users can temporarily switch to an alternative cloud storage provider, until the bug is fixed by Microsoft.

Hope this helps!

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