Folder – My Games – unpack to My Documents
Folder – Microsoft
On Windows Vista / 7/8
C: \ Users \ Name \ AppData \ Local
On Windows XP
C: \ Documents and Settings \ NAME \ Local Settings \ Application Data
Don’t forget to enable hidden folders.
Colin McRae: DiRT 2: Save Game (100% – 99 level) Free Download
Then go to another profile in games for windows live