Запустить cmd правами администратора
taskkill /f /im explorer.exe
assoc .exe=exefile
assoc .lnk=lnkfile
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer" /v "Max Cached Icons" /d "50000" /f
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Icons" /f
del /a /f /q "%LOCALAPPDATA%\IconCache.db"
rd /s /q "%LOCALAPPDATA%\Microsoft\Windows\Explorer" 2>nul
start "" ie4uinit -ClearIconCache
explorer
