The default icon storage location in Windows 10 or 11 is basically within the computer's 'local disk.' Next, click on the 'Windows' folder in the local disk. The DLL file in 'System32' in the 'Windows ...
In Windows 10 and Windows Server 2019, it may happen that File Explorer does not display the offline file icons correctly. You can identify an offline file by the overlay that shows an “x” character ...