cpu high usage while gaming - how to fix ? RRS feed

  • Question

  •  hey when im playing a game for example warcraft III my cpu becomes 100% and the game becomes laggy but then when i alt + F4 and leave my computer there for about 10 mins the cpu goes back to normal ? but when i play again the cpu goes 100%
    this just started recently happening , before i could play warcraft III fine but i dont know what has happened

    ive tried cCleaner, Smart defrag , RegCure, spybot S&D and avast antivirus but they just seem to not make anything better . please help

    my system is

    Processor: AMD Athlon(tm) 64 X2 Dual Core Processor6000 + 3.00ghz
    memory: 2gb ram
    system type: 32-bit operating system

    windows vista home basic

    my graphics card is 
    NVIDIA GeForce 8400 GS driver version :181.20
    Thursday, January 22, 2009 7:44 AM