I added a new drive (F:) to my Windows 7 computer and copied a load of data files from the C: drive to the new F: drive.
Now all the files and folders on the F: drive are read-only.
If I open up the properties window for the top level folder in F and untick the read-only box and click apply, windows appears to go through all the files and folders changing the setting. But it does nothing - when I open up the properties window for the top level folder (or any sub-folder) the read-only box is still ticked.
It is if windows thinks the new hard drive is a read only drive.
What can I do?