I’m sorry to hear that you’re experiencing this issue. It sounds like you’ve already tried some troubleshooting steps, but the issue persists. Here are some additional steps you can try to resolve the issue:
Clear the Icon Cache: You can try clearing the icon cache on your computer. This will rebuild the cache and may fix the issue with missing icons.
Remove and Repin Taskbar Icons: Another method is to unpin all the taskbar icons and then freshly pin them again.
Relaunch Windows Explorer: You can try relaunching the Windows Explorer process, which may fix the issue with missing icons.
Rebuild Icon Cache: You can also try rebuilding the icon cache on your computer.
Use System Restore Point: If you have a system restore point created before this issue occurred, you can try restoring your system to that point.