IconCacheRebuilder

If you notice that one or more of your icons are not being displayed correctly, there is a good chance that the system Icon Cache is corrupted, in which case it needs to be rebuilt.
IconCacheRebuilder is a straightforward utility that can perform this operation automatically, and is, therefore, well-suited for inexperienced users.

Intuitive utility that can clear the Icon Cache

In order to speed up the process of retrieving icons for various applications, the operating system stores them in the IconCache.db file. When doing so, it is easier for Windows to draw icons, but they may not be displayed correctly if this file becomes corrupted.
In order to fix this issue, you need to delete the Icon Cache and restart Windows Explorer, at which point the file should be restored. The repair process is relatively simple, but IconCacheRebuilder performs all the necessary operations automatically, making your job a lot easier.

Simple tool that can only help Windows Vista, 7 and 8 users

While the IconCache.db file still present in Windows 8.1 and Windows 10, it is no longer used for storing application icons, so this program cannot help you clear the Icon Cache if you are running one of these operating systems.
The repair procedure is not particularly complex for these newer versions of the Windows OS, as it simply involves deleting a number of hidden files from another directory. It would help if future versions of the application could perform this operation as well.

Novice-friendly program that can help you rebuild the Icon Cache

Overall, IconCacheRebuilder is a no-nonsense utility that can help you out if your icons are displayed incorrectly. It does this by deleting the IconCache.db file in your user directory, and it provides helpful instructions for restarting Windows Explorer to complete the process. It is very intuitive, but it cannot help those who are running Windows 8.1 or Windows 10.