Inspiron 6400 – Windows 7 and 8.1 64 Bit

This model and Operating System is not supported by Dell.


Recommended hardware Upgrades

This system will only run Windows 7 64 Bit if a 64 Bit processor is installed such as the Intel T7200, T7400 or T7600. Note the maximum RAM this system can address is 3.25 GB (limited by the chipset).

SSD – Solid State Drives

It is recommended to upgrade it to 4 GB of RAM (3.25 GB usable). This is also unofficial, the official maximum is 2 GB.

Refer to the Service Manual when performing hardware upgrades.

Media Direct

This is a Media Direct system and the Media Direct partition should be setup before installing Windows 7 see Preparing your Hard Drive: Setting Up Media Direct.

Windows OS

Windows 7 and 8.1 are now obsolete if you have these Operating Systems you should use them to take the Free Upgrade to Windows 10.

If you don’t have a Windows 7/8.1 license you have until the 2nd of October 2015 to upgrade to Windows 10 for free using the Windows 10 Insider 10130 as a stepping stone. See Free Upgrade from Windows Vista to Windows 10 (also works with Windows XP).

OS Updates

System utilities



* See instructions on using the Microsoft Update Catalog and install drivers via the Device Manager.


Try in order latest first, if it doesn’t work try for an older version.



For Windows 8.1 the audio driver is inbuilt to the OS and the registry file or older SigMatel Driver should not be installed.

Install the registry file and then the audio driver. New untested.


* Full Quickset functionality in Windows 7 except for Media Direct button within Windows.

Media Direct Updates

* Requires installation of the Media Direct program.

Dell Backup and Recovery

Only install if you have a larger than a 120 GB SSD/HDD

Note this system won’t be able to boot from a Rescue Disk (external hard drive) so make a Factory Backup (Bootable USB Flash Drive).

10 thoughts on “Inspiron 6400 – Windows 7 and 8.1 64 Bit

    1. Thank you! I’ve tried so many drivers to restore scroll functionality to my Dell E1505 running Windows 10 Pro 64bit. This did it!

  1. Thank you for this fantastic page.
    It was a great help to put Win7 64bit on my old Inspiron.

  2. Hi! First of all, thx for your work!
    Now… I have inspiron 6400 with ati radeon x1400 and I’ve got an issue… When I power on or restart, the login screen is black, only the arrow of mouse is on the screen… to realy get into os I must press power button once, to logoff or sleep, I guess, and again power button to power up the pc…After that I can see the desktop screeen.
    Also I had this issue on win 8 or 8.1…
    There is a resolution for this!

    Thx again!!

    1. Not tested that video as my inspiron 6400 had the Intel video. Is this Windows 10 TH2 and did you have the same issue with Windows 8.1? What driver version do you have?

      1. Sorry for lack of detail….
        Yes, I installed w10 build 10586 x64. Before had 10240 x64 and before that 8.1 x32, 7 x32 I used in all this example, the driver recommended by you… it work rights only in 7 x32
        I can upload a video sample to see what happens.
        Anyway right now I’m used with this issue..
        Thx for replay….

    2. Disabling “fast startup” in the control panel power settings may resolve the black screen issue. It did for me. You may also want to set your display brightness to 99% instead of 100%. Some people report this working for them also.

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