Close the desktop and taskbar interface:

taskkill /f /im explorer.exe

Navigate to the Cache Folder:

cd /d %userprofile%\AppData\Local\Microsoft\Windows\Explorer

Delete the Icon Cache Files:

attrib –h iconcache_*.db
del iconcache_*.db
attrib –h thumbcache_*.db
del thumbcache_*.db

Restart Windows Explorer:

start explorer.exe