Which are you installing? (Windows 7, XP, or Linux?) Are you missing a specific driver (like Wi-Fi or Sound)? Do you need help speeding up the performance ?
Replacing the old HDD with a cheap SSD will triple the speed. skachat draivera dlia msi x340
I can provide the exact or direct download links once I know your setup. Which are you installing
Intel GMA 4500MHD (For video playback and UI smoothness). Audio: Realtek High Definition Audio. Which are you installing? (Windows 7