A Microsoft file hosting and synchronization service.
This looks like a Windows file association and Office installation issue, not a OneDrive sync issue. Since OneDrive shows backed up and synced, focus on repairing Office and re-associating Office file types.
- Repair Microsoft 365
- Right-click Start.
- In Windows 11, select Installed apps. In Windows 10, select Apps and Features.
- Select Microsoft Office or Microsoft 365.
- Select Modify.
- If prompted, choose Online Repair and then Repair.
- Complete the repair, then restart the PC.
- Check whether the apps are installed and can be launched
- Select Start.
- Type Word, Excel, or PowerPoint.
- If found, open each app once.
- If the apps open, they can then be pinned to the taskbar by right-clicking the app from Start or search results and choosing Pin to taskbar.
- Re-associate Office files with the correct apps
- Select Start.
- Type and open Control Panel.
- Select Programs > Default Programs.
- Under Set a default for a file type or link type, choose the file type and set the correct Office app.
- Repeat for Word, Excel, and PowerPoint file types as needed.
- If Office file icons are blank after installation
- Open Start > Settings > Apps.
- Find Microsoft Office Desktop Apps.
- Select Advanced options.
- Select Fix.
- Restart the device.
- If the problem continues, repeat the steps and select Reset instead of Fix.
- If pinned taskbar icons disappeared or are not showing
- Press Ctrl + Shift + Esc to open Task Manager.
- Find Windows Explorer on the Processes tab.
- Right-click it and select Restart.
If the repair completes successfully, the expected result is:
- Word, Excel, and PowerPoint appear in Start search
- documents open in the correct Office app
- Office file icons return instead of blank boxes
- apps can be pinned to the taskbar
- "Something went wrong" error when you try to start a Microsoft 365 app
- Double-clicking an Office file fails to open it in the correct Office program
- Office icons are blank after installing Office from the Microsoft Store
- Taskbar Pinned Icons Disappeared - Microsoft Q&A
- Manage files and folders in OneDrive