Change description of file types associated with Notepad++
Solution 1:
If you have a look under:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.txt\UserChoice\ProgId
You should see something like Notepad++_file
If you find the entry for that in HKCR, e.g.
HKEY_CLASSES_ROOT\Notepad++_file
You'll see the description "Notepad++ Document", this is where Explorer picks it up from. If you simply set the value for Notepad++_file to empty and then ALL files will revert to generic descriptions, e.g. TXT file, PHP file etc.