This file though owned by me, gives me this error shown below.
I don't know how this error came about.
I have tried a work around that I found online which is the disable Enhanced security, but no luck.
This error message prevents me from copying, cutting, renaming, adding owners etc.Utterly inaccessible even though I have admin rights to this file!
This is certainly a problem with the Windows security of the file, not with Adobe Reader. You can see this because it says "Unable to display current owner". It may be permissions, or it may be damaged. You can try to take ownership, or change permissions so all users have access.