Hey George,
What's the full name of the .OEM file?
OEM is an acronym for Original Equipment Manufacturer. Files that contain the .oem file extension are most commonly associated with the Windows operating system Original Equipment Manufacturer files. These files are often distributed by second parties and are used during the text-mode setup of the Windows system and when a user installs drivers for devices that are connected to a Windows-based computer.
OEM files contain a list of hardware components and registry keys that are used on the computer. The information stored within these files is required to booth the user's machine. Without the proper OEM files, the user's machine will not boot properly.
Windows itself opens these files when double clicked. If you are not able to open it, then there are third party software's like OEM file opener, File view Pro which can be used to open OEM files.
Note: Using Third Party Software, including hardware drivers can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk.