This is how you rebuild the Icon Cache Database.
You’ll know you need to do this when icons don’t match applications, when shortcuts or green icons appear as overlays, or the icons have turned white.
What causes this?
A corrupted IconCache.db file, along with associated cached data.
Steps
1. Close all folder windows that are currently open.
2. Launch Task Manager using the CTRL+SHIFT+ESC key sequence, or by running taskmgr.exe.
3. In the Process tab, right-click on the Explorer.exe process and select End Process.
4. Click the End process button when asked for confirmation.
5. From the File menu of Task Manager, select New Task (Run…)
6. Type CMD.EXE, and click OK
7. In the Command Prompt window, type the commands one by one and press ENTER after each command:
ie4uinit.exe -show
taskkill /IM explorer.exe /F
DEL /A /Q “%localappdata%\IconCache.db”
DEL /A /F /Q “%localappdata%\Microsoft\Windows\Explorer\iconcache*”
8. In Task Manager, click File, select New Task (Run…)
9. Type EXPLORER.EXE, and click OK.
Notes
Try F5, to refresh Desktop
or
Create a new folder on the Desktop
Move affected icon into new folder
Move icon back to Desktop