Fix: Unable to access the specified device, path, or file when installing, updating or starting a program or file in Windows 7

This article may interest you, if when you attempt to install, update or start a program or file and you receive this error message: Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item.
You experience this issue if any of these scenarios is true:
– You do not have permissions to the file or the file location
– The file is on a location that is not currently accessible like a network location or an external drive that is not currently connected to the PC
– The file has been moved or deleted
– The file or shortcut is corrupt
– The file may be blocked by Windows
– Your antivirus software may be blocking the file
To resolve this issue, Microsoft KB2669244 recommends you try these troubleshooting steps in this order:
– Check to see if you have permission to open the file
– Check to make sure the file location is available
– Make sure that the file has not been moved or deleted
– Recreate the shortcut to check for corruption
– Check to see if the file has been blocked by Windows
– Check to see if your antivirus software is blocking the file