While trying to install SharePoint on a Windows 2003 server , I got the following error: "Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."
What I did was download the file, copy it over to the server, logged in via Terminal Services and I tried to install from there.
Now the thing that I didn't know is that it blocks the file as it came from another computer... To fix:
- Right-click file --> Properties
- On the General tab, right at the bottom is a Security notice informing you that it came from another computer
- Click Unblock
Voila, fixed!