If you can't remove the read-only attribute from a folder, I bet that you have a Desktop.ini file in the folder whose read-only attribute is set.
To resolve the problem, remove the read-only attribute from the Desktop.ini file, using either of the following:
- Right-click the Desktop.ini file and press Properties. Uncheck the Read-only attribute and press Apply.
- Open a CMD prompt and type: attrib -r <Drive:>\Folder\Desktop.ini