Had a very odd issue with Windows 10 and taskbar menu items missing:

After lots of research, I’ve partially fixed this by running the following from an elevated command prompt:

for /R "%APPDATA%\Microsoft\Windows\Start Menu\Programs\" %f in (.lnk) do copy /b "%f"+,, "%f" 1>nul
for /R "%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\" %f in (.lnk) do copy /b "%f"+,, "%f" 1>nul
taskkill /IM explorer.exe /F
explorer.exe


What this does is:

• Update “Last Update Date” attribute on Start Menu Links
• Kill Explorer process
• Start Explorer process

The result being:

The one missing icon is for Microsoft Edge (also other Microsoft Store Apps have missing icons too, such as Calculator etc).

After lots of research, investigation and trial-and-error, I solved the problem by uninstalling “Google Drive File Stream” (plus I dont really use this anyways):

Tada Fixed: