Fix Click-to-Run Errors When Installing Microsoft Project
Question details
Users are encountering a Click-to-Run error message that prevents Microsoft Project from being installed.

- Product
- Microsoft Project
- Device & OS
- not provided
- Scenario
- Installing the desktop version of Microsoft Project on a system that may already contain other Microsoft Office applications.
- Observed behavior
- The installation process fails and displays a Click-to-Run error, typically caused by installation type conflicts (MSI vs. Click-to-Run) or unsupported licensing plans.
Verify your Microsoft Project license plan to ensure it includes the desktop application, and check your current Microsoft Office installation type to see if it uses Click-to-Run or Windows Installer (MSI).
Resolve Click-to-Run and Windows Installer (MSI) Conflicts
Microsoft does not support installing mixed deployment types (Click-to-Run and MSI) for Office products on the same computer.
If you already have a Windows Installer (MSI) version of Microsoft Office installed, you cannot install a Click-to-Run version of Microsoft Project of the same version year alongside it. You must ensure all installed Office applications share the same deployment architecture.
Open an existing Office application such as Word, click on 'File', and select 'Account'. Under Product Information, if you see an 'Update Options' button, your Office is Click-to-Run. If there is no such button, it is MSI.
Open the Control Panel, navigate to 'Programs and Features', select the MSI version of Microsoft Office, and click 'Uninstall' to remove it.
Restart your computer, then install the compatible Click-to-Run versions of both your main Microsoft Office suite and Microsoft Project from your Microsoft 365 portal.
Verify Your Microsoft Project Licensing Plan
Confirm that your specific Microsoft Project subscription includes the rights to install the desktop application.
Avoid Installation Conflicts with WPS Office
Tired of troubleshooting complex Click-to-Run and Windows Installer conflicts? Switch to WPS Office for a lightweight, hassle-free productivity suite that installs in seconds without deployment headaches.
- 1. Download WPS Office: Visit the official WPS Office website and click the Free Download button.
- 2. Run the Installer: Open the downloaded setup file to begin the fast, conflict-free installation process.
- 3. Start Creating: Open WPS Office and immediately start working on your documents, spreadsheets, and presentations.

Frequently Asked Questions
What is a Click-to-Run installation?
Click-to-Run is a modern Microsoft streaming and virtualization technology used to rapidly install and update Office products over the internet. It has largely replaced the older Windows Installer (MSI) deployment method.
Can I install Click-to-Run and MSI versions of Office together?
No, Microsoft strictly prohibits installing products that use Click-to-Run and products that use Windows Installer (MSI) on the same computer if they share the same primary version year.
Why doesn't my Project license allow me to install the desktop app?
Microsoft offers different tiers of Project subscriptions. Basic plans like Project Plan 1 only provide browser-based access. You must have Project Plan 3 or Plan 5 to download and install the desktop application.
How do I check if my current Office is Click-to-Run?
Open any Office app like Word, navigate to File > Account, and check the 'Product Information' section. If you see an 'Update Options' button, your installation uses Click-to-Run.




