Let me help you solve this problem.
Recommended: Win7 security version download
Solution:
Enter the following command at the command prompt to restore.
taskkill /im explorer.exe /f
cd /d %userprofile%appdatalocal
del iconcache.db /a
start explorer.exe
exit
As long as you enter these commands in the Win7 system, you can retrieve the lost EXE file icon. If you have encountered this problem, please go and give it a try.