Nvidia GeForce 8400M GS 8600M GS Windows 7 Driver

1. Download the following driver (for 32 bit select windows 7):

Windows 7: Download
Windows 7 64-bit : Download

2. Install it, if it resulting in error continue with next step. (it will create a nvidia folder in C)

3. Download this file inf file (After click the link you will be redirect to the download page - click modified inf to begin download):
197.16, here 32bit
197.16 here 64bit


4. Go to C:\NVIDIA\DisplayDriver\197.16\WinVista_Win7_32@64\English\Display.driver paste the INF we download in step 3 there. (if it prompt to replace the file select replace)

5. Then again go to C:\NVIDIA\DisplayDriver\197.16\WinVista_Win7_32@64\English and run setup. it will resulting prompt not recognize etc but continue with installation.