Fix Office 365 Installation or Update Stops During Loading
Question details
The user is experiencing a freeze or endless loading loop when trying to open Microsoft 365 applications after an apparent software update.
- Product
- Microsoft 365
- Device & OS
- Windows
- Scenario
- Launching Office desktop applications after a recent software update or installation attempt.
- Observed behavior
- Outlook and other Office apps display continuous loading messages and refuse to open, and the computer is noted to have limited free disk space.
Ensure your computer has sufficient free disk space (at least 5-10 GB) before attempting to repair or reinstall Office, as a lack of storage can easily cause installations and updates to freeze.
Run the Office Online Repair Tool
Use the built-in Windows repair tool to automatically scan and replace corrupted Office installation files causing the endless loading loop.
The Online Repair tool is the most effective way to resolve persistent loading issues because it downloads fresh files directly from Microsoft's servers to replace any corrupted components.
Click the Start menu, search for 'Control Panel', and select it. Under 'Programs', click on 'Uninstall a program' to open the Programs and Features list.
Scroll through the list of installed applications until you find 'Microsoft 365' or 'Microsoft Office'.
Right-click the Office application and select 'Change'. When the prompt appears, select 'Online Repair' and click the 'Repair' button to begin the process.
Perform a Clean Boot to Check for Software Conflicts
Start Windows with a minimal set of drivers and startup programs to determine if background software is interfering with Office.
Switch to WPS Office for a Lightweight, Hassle-Free Experience
If Microsoft 365 continues to freeze during updates, consider switching to WPS Office. It provides a lightweight, fast, and free alternative that takes up significantly less disk space.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button.
- 2. Install WPS Office: Run the downloaded setup file. The lightweight installation takes only a few minutes and requires minimal disk space.
- 3. Open Your Documents: Launch WPS Office and open your existing Microsoft Office files with full formatting compatibility.
Frequently Asked Questions
Why is my Microsoft Office stuck on the loading screen?
This usually happens due to corrupted update files, insufficient disk space, or conflicts with other background applications and third-party add-ins.
Will running an Online Repair delete my existing Word or Excel files?
No, running an Online Repair only resets and fixes the software installation files. Your personal documents, spreadsheets, and emails remain completely safe and untouched.
How much free disk space is required for Microsoft 365 updates?
Microsoft generally recommends having at least 4 GB of available disk space on your system drive to download and install Office updates smoothly.
