如果您在Windows 10 计算机上打开注册表编辑器^{(Registry Editor)}中的特定键时遇到错误消息阻止打开此键^{(An error is preventing this key from being opened)}，那么这篇文章旨在帮助您解决我们将提供的解决方案，您可以尝试帮助您解决此问题。

根据您尝试打开的注册表项，您将收到以下完整错误消息：

Key cannot be opened

An error is preventing this key from being opened.

Details: The system cannot find the file specified.

如果您搜索名称太长以至于工具无法处理的注册表项/位置/数据，您将遇到此问题。而且，当您的帐户没有打开/修改/删除特定注册表项所需的权限时。

错误导致无法打开此密钥

如果此错误是搜索名称太长导致 regedit 无法处理搜索查询的注册表项/位置/数据的情况，您可以尝试拆分搜索查询。如果您有完整的注册表^(Registry)位置可用，则可以逐个键手动访问它。

但是，如果您的帐户没有打开/修改/删除特定注册表项所需的权限，则需要以 SYSTEM 帐户^(SYSTEM)而不是管理员帐户（默认）运行regedit 。

这可以使用名为 PsExec的命令行工具来完成。就是这样：

首先， 从 TechNet下载Sysinternals 的^(download) PsExec工具^(PsExec)。

提取下载的压缩压缩文件^{(Extract the downloaded compressed zipped file)}。

提取文件后，您将获得 PSTools文件夹。将此文件夹内的所有内容复制^(Copy)到下面的目录路径中。将 C:替换 为您的系统根驱动器。

C:\Windows\System32 folder

现在，以管理员模式打开命令提示符^{(open Command Prompt in admin mode)}。

在CMD提示窗口中，复制并粘贴下面的命令，然后按 Enter^(Enter)。

psexec -i -d -s c:\windows\regedit.exe

此命令将使用系统帐户启动注册表编辑器。^{(Registry Editor)}

您可以再次尝试搜索查询。

它应该成功完成而没有问题。

That’s it!

An error is preventing this key from being opened in Windows 10

If you’re encountering the error message An error is preventing this key from being opened while opening specific keys in Registry Editor on your Windows 10 computer, then this post is intended to help you with the solutions that we will present that you can try to help you remediate this issue.

Depending on the registry key you’re trying to open, you’ll receive the following full error message:

Key cannot be opened

An error is preventing this key from being opened.

Details: The system cannot find the file specified.

You’ll encounter this issue if you searched for registry key/location/data whose name is too long that the tool can’t handle it. And, also when your account do not have the required permissions to open/modify/delete a specific registry key.

An error is preventing this key from being opened

If this error is the case of the search for registry key/location/data whose name is too long that regedit can’t handle the search query, you can try splitting your search query. If you have the complete Registry location available, you can access it manually, key by key.

However, if it’s the case of your account do not have the required permissions to open/modify/delete a specific registry key, you need to run regedit as SYSTEM account rather than an administrator account (default).

This can be done using a command-line tool named PsExec. Here’s how:

First, download PsExec tool by Sysinternals from TechNet.

Extract the downloaded compressed zipped file.

Upon extracting file, you’ll get PSTools folder. Copy all the content inside this folder to the directory path below. Replace C: with your system root drive.

C:\Windows\System32 folder

Now, open Command Prompt in admin mode.

In the CMD prompt window, copy and paste in the command below and hit Enter.

psexec -i -d -s c:\windows\regedit.exe

This command will launch Registry Editor with the system account.

You can try the search query again.

It should complete successfully without the issue.

That’s it!

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