You need a PC with these system requirements :
1GHz or faster 32-bit (x86) or 64-bit (x64) processor
1 GB RAM (32-bit) / 2 GB RAM (64-bit)
16 GB available disk space (32-bit) / 20 GB (64-bit)
DirectX 9 graphics processor with WDDM 1.0 or higher driver
The RC will expire on June 1, 2010. Nevertheless, starting on March 1, 2010, your PC will begin shutting down every two hours.