External Hard disk lost abilty to open files

[artinusa]

I wonder if anyone can help I am not sure why but I am not able to delete or even open some files on my larger External drive.. I see them ok I tries (security) to give permissions to the whole drive and waited some time and thought I had given new permissions I am still not able to delete files and open some..any help please

 

[bigmck]

What happens when you try to open them? What are the file extensions on these files?

 

[whs]

Can you post a picture of disk management and point to this drive.

 

[CKWD]

Hello artinusa!

What kind of external hard drive do you have, brand, model, capacity?

Has something happened last before this problem would occur? Like ejecting it unsafely, suddenly; power surge, virus, interrupted copy-paste process?

Also, do please provide information about @bigmck and @whs's questions!

CK_WD