Hi Nan Ward,
I understand how frustrating it can be when your pinned taskbar icons suddenly disappear after restarting your PC.
Could you also confirm:
- Are all pinned taskbar icons disappearing, or only the Microsoft 365 apps?
- Which version of Windows are you using (Windows 10 or Windows 11)?
In the meantime, if you're using Windows 10 or Windows 11 Home, please try the following:
1, Check whether the affected apps are still installed
- Press the Windows key and search for one of the missing apps (for example, Word or Excel).
- If the app opens normally, then the issue is likely limited to the taskbar shortcuts.
2, Restart Windows Explorer
- Press Ctrl + Shift + Esc to open Task Manager.
- Locate "Windows Explorer" on the "Processes" tab.
- Right-click it and select "Restart".
3, Check whether the issue occurs after every restart
- If you re-pin an icon and it remains after another restart, the problem may have been a one-time taskbar configuration issue.
- If the icons disappear again after each restart, additional troubleshooting will be needed.
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