well I would suggest removing any references it may have put in the registry from the failed install, which might stop you installing again.

warning, editing the registry blah blah

Open regedit (From the Run.. option in the start menu)

1. Click the plus sign next to HKEY_LOCAL_MACHINE.
2. Click the plus sign next to Software.
3. Click the plus sign next to Electronic Arts.
4. Click the plus sign next to EA Games.
5. Remove Battlefield 2142 folder if there

Also remove any Battlefield2142 folders from program files which might be in EA Games or Electronic arts folders. If you have trouble removing them, this is the problem, and it's a windows thing. Can help there if that's the case later..

I spent time doing some of this duing an install process once, with another issue whilst talking with EA support, and failed installs/uninstalled game doesn't remove some files.

Try installing again. So long as your admin, and not trying to install to another location other than C:\.. you should be good.

If it happens again, I would download the installer from EA downloader again. Could be corrupt download. I forget how to do that, as I use disc version mainly and EA version on another PC. Hope your internet speed is fast!