lock icon in files, not copy and not open

[are]

hi
i have external disk. ı used two years ago, but i need to use the file inside disk but file ptt and pdf not copy and not open

 

[Digerati]

Sadly, you didn't tell us which version of Windows.

It seems your files may be encrypted. See this: Change or Remove Lock Icon on Encrypted Files in Windows 10 | Tutorials