Let's try rebuilding the icon cache on your computer. Some users were able to restore the default system icons by rebuilding the icon cache. Here are the steps:
Open File Explorer.
Navigate to the C:\Users\%username%\AppData\Local\Microsoft\Windows\Explorer
In this folder, you will see a lot of files like iconcache_32.db, iconcache_48.db, iconcache_96.db, iconcache_256.db, iconcache_1024.db, iconcache_1280.db, iconcache_1600.db, iconcache_1920.db, iconcache_2560.db, iconcache_exif.db, iconcache_idx.db,
iconcache_sr.db, iconcache_wide.dd, iconcache_wide_alternate.db, etc.
Delete them all to purge and rebuild the icon cache.
Reboot your computer.
If the custom icons still appear after rebuilding the icon cache, we suggest that you perform a repair upgrade using a
Creators Update ISO file. Performing this can repair broken operating system files while preserving your personal files, settings and installed applications. For more information and steps on how to perform a repair upgrade, kindly follow the wiki article
created by Andre Da Costa on the following link:
How to perform a repair upgrade using the Windows 10 ISO file.
If you need further assistance, please do not hesitate to post a reply.
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