There is one common problem in network folders related to the use of the thumbnail caching by Windows File Explorer. Unable to Delete Network Shared Folder Because Thumbs.db is in Use If you need to disable thumbnail creation on all computers in the domain, use Group Policy. Enable the “ Always show icons, never thumbnails” option in Advanced Settings of the View tab.The easiest way to do this is from the File Explorer settings menu: However, you can prevent Windows 10 File Explorer from creating the thumbs.db file. It will be automatically recreated the next time you view the thumbnails of the files in the folder. The thumbs.db file can be safely deleted manually.

If your Windows 10 doesn’t display icons or thumbnails correctly, you can reset this cache.