Problem copying files from PC to Galaxy S3

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http://forum.xda-developers.com – So I am not sure what is going on here, but I have Windows 7 pro and cant copy any files to my Galaxy S3. Ive tried different kind of files and still nothing. The error I am getting is just saying 'You do not have permission to create this item'. I am just using a straight USB connection from my pc to the phone and its recognized as a media drive. Anyone experienced something like this before? (HowTos)