不能安装使用两种不同安装技术的同一版本的Office产品安装在同一台计算机上。^(Office)在这篇文章中，我们将向您展示如何解决Windows 11/10Office MSI 和即点即用安装程序冲突。

两种Office产品安装技术：

1. 即点即用^{(Click-to-Run)}– 是用于安装Office 365订阅和最新版本的Microsoft Office的技术。
2. Windows Installer 技术 (MSI)^{(Windows Installer technology (MSI))} – 用于安装Office 2016和更早版本的批量许可版本，例如Microsoft Office Professional Plus和Microsoft Office Standard。

^(Office)不支持在同一台计算机上使用即点即用^{(Click-to-Run)}和MSI安装程序安装Office

当您尝试在同一台Windows 10计算机上安装使用两种不同安装技术的同一版本的Office产品时，如果^(Office)Office检测到此不兼容性，您将收到以下错误消息：

很抱歉，Office 即点即用^{(Office Click-to-Run)}安装程序遇到问题，因为您的计算机上安装了这些基于Windows Installer的Office程序。

这也适用于独立应用程序，如Access、Visio、Project、Skype for Business或OneDrive for Business。

要解决此冲突，您可以继续使用 Office 的MSI^(Office)安装^(MSI)程序版本，而不是安装您尝试安装的Office 365即点即用版本。^{(Click-to-Run)}或者，执行以下操作：

• 从您的 Windows 计算机卸载 OfficeC以删除Office的^(Office)Windows Installer版本。
• 然后在收到错误消息时重试您正在执行的Office安装。^(Office)

同样，这个问题也可以在企业环境中遇到。

据微软称；

A customer has purchased Volume-Licensed perpetual copies of Project 2016 and Visio 2016. While migrating the enterprise to Office 365 ProPlus (2016) they find out that the 2016 version of Office 365 ProPlus which uses click-to-run, cannot be installed side-by-side with the 2016 version of Project and Visio that are MSI based. This blocks customers from upgrading their versions of Project and Visio to 2016.

基于上述场景——为解决企业用户终端问题，IT 管理员可以下载使用最新版本的Office 部署工具^{(Office Deployment Tool)}下载并安装基于点击运行的 Project 2016 和Visio 2016，可以使用他们的批量许可证（KMS 或 MAK）激活。

新的Office 部署工具^{(Office Deployment Tool)}支持四个新的ProductID^(ProductIDs)，允许 IT 管理员下载和安装Project或Visio的标准或专业版本。

That’s it! Hope you find this information useful.

Office Click-to-Run Installer and MSI problem on Windows 11/10

Υou can’t install the same version of Offіce products that usе two different installation technologies installed on the same computer. In this post, we will show you how you can resolve the Office MSI and Click-to-Run installer conflicts in Windows 11/10.

The two Office products installation technologies:

1. Click-to-Run – is the technology used to install Office 365 subscriptions and most recent versions of Microsoft Office.
2. Windows Installer technology (MSI) – is used to install the volume license editions of older versions of Office 2016 and older, such as Microsoft Office Professional Plus and Microsoft Office Standard.

Office installed with Click-to-Run & MSI installer on the same computer isn’t supported

When you try to install the same version of Office products that use two different installation technologies installed on the same Windows 10 computer, you’ll get the following error message if Office detects this incompatibility:

We’re sorry, Office Click-to-Run installer encountered a problem because you have these Windows Installer based Office programs installed on your computer.

This also applies to standalone applications like Access, Visio, Project, Skype for Business, or OneDrive for Business.

To resolve this conflict, you can stay with the MSI installer version of Office and not install the Office 365 Click-to-Run version you were trying to install. Or, do the following:

• Uninstall Office from your Windows computerC to remove the Windows Installer version of Office.
• Then retry the installation of Office you were performing when you got the error message.

Similarly, this issue can also be encountered in an enterprise environment.

According to Microsoft;

A customer has purchased Volume-Licensed perpetual copies of Project 2016 and Visio 2016. While migrating the enterprise to Office 365 ProPlus (2016) they find out that the 2016 version of Office 365 ProPlus which uses click-to-run, cannot be installed side-by-side with the 2016 version of Project and Visio that are MSI based. This blocks customers from upgrading their versions of Project and Visio to 2016.

Based on the scenario described above – to resolve the issue on user endpoints in the enterprise, IT administrators can be able to download use the latest version of Office Deployment Tool to download and install click-to-run based Project 2016 and Visio 2016 that can be activated using their volume license (KMS or MAK).

The new Office Deployment Tool supports four new ProductIDs that allows IT admins to download and install the standard or Professional versions of Project or Visio.

That’s it! Hope you find this information useful.

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