You might not have the appropriate software installed on your computer to show / read the files
IE: adobe flash , directx , win zip , codec , word ...... Determine if access is denied by a sharing violation because the folder and its files are in use by someone else or the computer itself. Wait several minutes, and then attempt to access the folder again. Go to the location where the file or its folder are stored on your computer. Lock files are hidden files in Microsoft Windows. Select "Show hidden files." The lock files for Windows applications have a ~ symbol in front of the file name. For example, for test.txt, the lock file is named ~test.txt. In UNIX, the lock file may be identified by an extension of .lock or .swp within in the file name. Delete the lock file. The locked file or folder unlocks. Reboot your computer, and bring it up in Safe Mode. This prevents the startup of many of the system services and programs that could be locking the files or folders. Attempt to access the folder location and its contents. If the folder is available, save the folder or its contents in a directory to which you have access. Record the active processes running on the computer and the programs available in Safe Mode. Then, log into the computer after a normal boot up. Review the applications running in the background in normal setup. One of these applications may be preventing access to the file folder and its contents. If there are applications that run in normal mode that do not run in Safe Mode, turn off those applications. Then, try to access the file folder again. b> Are the Security Permissions for the Folder or Its Contents Preventing Access?
b> Check the file folder permissions by right-clicking on the folder and selecting "Properties." In the "Properties" dialog box, select the "Security" tab. The "Name" list box includes the user and group permissions. If there is no "read," "read and execute," or "write" permissions in your user profile, you do not have permission to view the file folder or its contents. These security permissions are typically set by system administrators. System administrators may be trying to prevent end users from altering system files that are critical to the computer running smoothly. Contact your system administrator, and request local administrative rights to the computer. This allows you to gain access to the files and folders that are restricted to administrators. Edit the system policies using administrative tools via the gpedit.msc program. Users can add, read and modify permissions for folders and other objects via this program. Full control is the best system policy, because it includes read, write, execute and modify rights. However, access to the gpedit.msc program may be restricted, as well. Go to the command line (press on the "Windows" and the "R" keys on your keyboard at the same time), and enter the CACLS command for the folder name. Use the command format: C:\> cacls <foldername> /E /G <username>:F CALCS stands for Change the Access Control ListS. This command allows you to add your user name to the security settings to permit access to the protected system folder when the gpedit.msc program is not available.
Downloads to Recover Your Files and Save Your Bacon
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. Some addition links found on Google http://www.datarecoveryreview.net/ http://www.cleverfiles.com/ http://www.easeus.com/resource/hard-disk-data-recovery.htm