Troubleshooting
Fix Broken Libraries in Windows 8.1 and Restore Default Libraries (Historical)
Show Libraries in Windows 8.1 File Explorer and restore the default library definitions when Documents, Pictures, Music, or Videos libraries are broken.
2 articles
Show Libraries in Windows 8.1 File Explorer and restore the default library definitions when Documents, Pictures, Music, or Videos libraries are broken.
Historical Windows 7 guide to restoring image thumbnails in File Explorer by checking folder settings, view mode, cache, and file associations.