This is usually an icon cache or shortcut icon issue. Try these steps in order:
- Restart Windows Explorer
- Press Ctrl + Shift + Esc to open Task Manager.
- In Processes, find Windows Explorer.
- Right-click it, then select Restart.
- Check whether the Snipping Tool icon returns.
- Clear the icon cache
- Save open work first, because Windows Explorer will be restarted.
- Open Task Manager.
- In Processes, right-click Windows Explorer and select End task.
- In Task Manager, select File > Run new task.
- Type cmd.exe and create the task with administrative privileges.
- Run these commands:
CD /d %userprofile%\AppData\Local DEL IconCache.db /a- In Task Manager, select File > Run new task again.
- Type explorer.exe and press Enter.
- Unpin and pin the app again
- Right-click the Snipping Tool icon on the taskbar and select Unpin from taskbar.
- In the Search box, type Snipping Tool.
- Right-click the app, then select Pin to taskbar.
- If the icon is still blank, check the shortcut icon handler
- Warning: registry changes can cause serious problems if done incorrectly. Back up the registry first.
- Open Registry Editor.
- Go to:
HKEY_CLASSES_ROOT\lnkfile\shellex\IconHandler - Verify the (Default) value is:
{00021401-0000-0000-C000-000000000046} - Then go to:
HKEY_CLASSES_ROOT\CLSID\{00021401-0000-0000-C000-000000000046} - Verify the (Default) value is Shortcut.
- Then go to:
HKEY_CLASSES_ROOT\CLSID\{00021401-0000-0000-C000-000000000046}\InProcServer32 - Verify the (Default) value is:
C:\Windows\System32\windows.storage.dll
These steps are the documented fixes for blank or missing taskbar icons, and re-pinning the app is also a supported taskbar action.
References: