如果您正在运行Microsoft Office，但收到一条错误消息，指出Microsoft Office无法保留或找到您的许可证密钥，因此它会自动关闭，您将看到另一条错误消息 - Windows 无法在本地计算机上启动软件保护服务，错误 5 , 访问被拒绝^{(Windows could not start the Software Protection service on Local Computer, Error 5, Access is Denied)}。在您的计算机上打开“服务^(Services)”窗口后会出现此错误消息。

Microsoft Office找不到此应用程序的许可证

假设您想在Microsoft Word或Excel上工作- 但是当您打开它时，您会看到一条错误消息：

Microsoft Office can’t find your license for this application. A repair attempt was unsuccessful or was cancelled. Microsoft Office will exit now.

Windows 搜索各种服务^(Services)以运行特定程序。例如，如果您打开Microsoft Word，它将搜索有效的许可证密钥。如果相关服务未正确运行，您可能会收到上述错误消息。

Windows 无法在本地计算机上启动^{(Local Computer)}软件保护^{(Software Protection)}服务

如果您收到 - Microsoft Office 找不到此应用程序的许可证^{(Microsoft Office can’t find your license for this application)}，则修复尝试不成功或被取消。Microsoft Office will exit now^{( repair attempt was unsuccessful or was canceled. Microsoft Office will exit now)} error 随后Windows could not start the Software Protection service on Local Computer, Error 5, Access is Denied，那么这些建议可能会对您有所帮助。

当您尝试在“服务”面板中打开^(Services)软件保护^{(Software Protection )}服务时会出现此问题，您应该执行以下操作来解决此问题。

1. 取得sppsvc.exe^(sppsvc.exe)的所有权
2. 取得注册表项的所有权
3. 运行 DISM。

在开始之前，您应该首先创建一个系统还原点，并且知道拥有系统元素可能会使您的操作系统“不那么安全”。^{(Before you begin, you should create a system restore point first, and know that taking ownership of system elements may make your OS “less secure”.)}

1]取得sppsvc.exe文件的所有权

Sppsvc.exe是Microsoft 软件保护平台服务^{(Microsoft Software Protection Platform Service)}，它是导致此错误的文件。默认情况下，这是受TrustedInstaller保护的文件，您需要拥有该文件的所有权^{(take ownership of this file)}。为此，打开Windows 资源管理器^{(Windows Explorer)}并导航到此路径：

C:WindowsSystem32

这里，C 是系统驱动器。在System32文件夹中，您应该找到sppsvc.exe应用程序文件。

2]获取注册表^(Registry)项的所有权

您需要拥有注册表项的所有权^{(take ownership of registry key)}。为此，请打开注册表编辑器^{(Registry Editor)}。为此，请按Win + R，键入regedit并按Enter按钮。之后，导航到此路径：

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform

现在，右键单击SoftwareProtectionPlatform并选择Permissions。

从组或用户名^{(Group or user names )}列表中，选择sppsvc。现在，在Full Control和Read [Allow] 复选框中打勾。

分别单击Apple和OK按钮以保存更改。

现在，检查您的问题是否已解决。

3]运行DISM

DISM或部署映像服务^{(Deployment Image Servicing)}和管理^(Management)可以帮助您解决问题，而其他任何事情都无法解决。如果其他两种解决方案没有帮助，请运行 DISM^{(run DISM)}并查看最终是否适合您。

如何修复软件保护^{(Software Protection)}服务？

要修复 Windows 11/10 计算机上的软件保护服务^{(Software Protection Service)}问题，您需要拥有Sppsvc.exe和相应的注册表^(Registry)项的所有权。本文中提到了这两个技巧，您可以按照它们来解决与此服务相关的任何问题。

您如何获得Sppsvc的所有权？

如文章中所述，Sppsvc.exe是受TrustedInstaller保护的文件，您需要拥有完全所有权才能解决任何问题。为此，您可以按照本教程学习如何  在 Windows 11/10中获得文件和文件夹的完全所有权。^{(take full ownership of files and folders)}

如何启用 Sppsvc？

要在Windows 11/10中启用软件保护^{(Software Protection)}服务或Sppsvc，您需要先打开服务^(Services)面板。然后，双击 软件保护 ^{(Software Protection )}服务并单击 开始 ^(Start )按钮。最后，单击 OK 按钮保存更改。或者，您可以使用命令提示符^{(Command Prompt)}或Windows PowerShell来执行相同的操作。

是否需要软件保护^{(Software Protection)}服务？

是的，Windows 11/10和所有其他旧版本都需要软件保护^{(Software Protection)}服务。它可以帮助您继续使用许可证密钥完整的各种付费软件。换言之，您可能会因禁用计算机上的软件保护^{(Software Protection)}服务而失去Windows和Office激活。

祝一切顺利。^{(All the best.)}

Windows could not start the Software Protection service

If you are running Microsoft Office but receiving an error message that says Microsoft Office cannot retаin or find yоur license key and henсe it is closing aυtomatically, you will see another error message – Windows could not start the Software Protection service on Local Computer, Error 5, Access is Denied. This error message appears after opening the Services window on your computer.

Microsoft Office can’t find your license for this application

Let’s assume that you want to work on Microsoft Word or Excel – but when you open it you see an error message:

Microsoft Office can’t find your license for this application. A repair attempt was unsuccessful or was cancelled. Microsoft Office will exit now.

Windows searches for various Services to run a particular program. For example, if you open Microsoft Word, it will search for a valid license key. If the concerned service is not running correctly, you could get the error message mentioned.

Windows could not start the Software Protection service on Local Computer

If you receive – Microsoft Office can’t find your license for this application, A repair attempt was unsuccessful or was canceled. Microsoft Office will exit now error followed by Windows could not start the Software Protection service on Local Computer, Error 5, Access is Denied, then these suggestions may help you.

As this problem occurs when you try to open the Software Protection service in the Services panel, you should do the following to fix this issue.

1. Take ownership of sppsvc.exe
2. Take ownership of the Registry key
3. Run DISM.

Before you begin, you should create a system restore point first, and know that taking ownership of system elements may make your OS “less secure”.

1] Take ownership of sppsvc.exe file

Sppsvc.exe is Microsoft Software Protection Platform Service and it is a file that is responsible for this error. By default, this is a TrustedInstaller protected file, and you need to take ownership of this file. For that, open Windows Explorer and navigate to this path:

C:\Windows\System32

Here, C is the system drive. In the System32 folder, you should find the sppsvc.exe application file.

2] Take ownership of the Registry key

You need to take ownership of registry key. To do that, open Registry Editor. For that, press Win + R, type regedit and hit the Enter button. Following that, navigate to this path:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform

Now, right-click on the SoftwareProtectionPlatform and select Permissions.

From the Group or user names list, select sppsvc. Now, make a tick in the Full Control and Read [Allow] checkboxes.

Click the Apple and OK button respectively to save your change.

Now, check whether your problem has been resolved or not.

3] Run DISM

DISM or Deployment Image Servicing and Management could help you fix the issue when nothing else could. If other two solutions do not help, run DISM and see if that finally works for you.

How do I fix Software Protection service?

To fix the Software Protection Service problem on your Windows 11/10 computer, you need to take ownership of Sppsvc.exe and the corresponding Registry key. Both of the tricks are mentioned in this article, and you can follow them to fix any issue related to this service.

How do you take ownership of Sppsvc?

As mentioned in the article, Sppsvc.exe is a TrustedInstaller protected file, and you need to take full ownership to fix any issue. For that, you can follow this tutorial to learn how to take full ownership of files and folders in Windows 11/10.

How do I enable Sppsvc?

To enable the Software Protection service or Sppsvc in Windows 11/10, you need to open the Services panel first. Then, double-click on the Software Protection service and click the Start button. At last, click the OK button to save the change. Alternatively, you can use the Command Prompt or Windows PowerShell to do the same.

Is Software Protection service needed?

Yes, the Software Protection service is needed in Windows 11/10 and all the other older versions. It helps you continue using various paid software with the license key intact. In other words, you may lose the Windows and Office activation by disabling the Software Protection service on your computer.

All the best.

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