I tested several file explorers from Windows 7 to Windows 10.
It seems that even after setting Windows Explorer to:
- show hidden files
- show known file extensions
- show protected system files
...there are still some hidden extensions. I found out about this by accident.
For example, there's a hidden suffix ".library-ms".
For example, XYplorer (paid file explorer) can correctly display the real filenames.
However, Windows Explorer and Q-Dir (free file explorer) - Do NOT.
It's the same in Windows 8.x and Windows 10.
There are also other hidden extensions, such as .LNK (shortcut) files.
If you wanna see all these hidden extensions, run this code in a batch file:
REM *** Show super-duper hidden extensions [basically deleting the NeverShowExt (REG_SZ) values] ***
REM *** Source info: www.askvg.com/tip-how-to-show-file-extensions-of-shortcuts-lnk-url-pif-in-windows-explorer/ ***
REM .LNK (File/Folder Shortcut)
REM .URL (Internet Shortcut)
REM .PIF (MS-DOS Program Shortcut)
REM .SCF (Windows Explorer Command)
REM .SHS (Shell Scrap Object)
REM .SHB (Document Shortcut)
REM .XNK (Exchange Folder Shortcut)
REM .library-ms (Library folder)
reg delete "HKEY_CLASSES_ROOT\lnkfile" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\IE.AssocFile.URL" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\IE.AssocFile.WEBSITE" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\InternetShortcut" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\Microsoft.Website" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\piffile" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\SHCmdFile" /v "NeverShowExt" /f
reg delete "HKEY_CLASSES_ROOT\LibraryFolder" /v "NeverShowExt" /f
