It has come to my attention that the new Elder Scrolls V: Skyrim game only allows the use of 2 threads on my 4-thread i5-2410M processor.
Is there a way I can temporarily disable the 4 threads and convert it to 2, thus allowing the game to gain full access to the full processor?
According to this information your Processor should be integrated on a laptop. The system manufacturer may limit the features and usage of the processor at a BIOS level. Therefore you may not see the option you are looking for to enable or disable the threads. You should contact your system manufacturer and find out with them whether you can enable or disable this using the system configuration you have.