Precision M6300, Windows 7 drivers?

Windows 7 isn't supported on the M6300, so you may or may not get it working. You'll need to use Vista x64 drivers or get any needed drivers from the individual device manufacturers' websites.

IF you need a driver, one of the following would be what you are looking for, however, it is MUCH more likely that your media is bad.

http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=CNMC3

http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=TRDW5

The Precision M6300 came out in 2007. We never tested Windows 7 on it which came out in 2009. We validated =
Windows XP 64-bit
Windows Vista 32/64-bit
Windows Vista Ultimate 32/64-bit
Novell certification
Red Hat Enterprise Linux 64-bit
n Series

The User's Guide never mentions Windows 7.

"The m6300, at least some HW versions/builds of the m6300, were "listed on Dell's website" for sale, with Win 7 x64 pre-installed, at least as recently as 2012."
* Provide those links to prove this statement.

* No, never a recall.

* How is it a poor business practice to only support what we validated?

Nobody said it won't run Windows 7 just fine - it simply isn't supported by Dell. Often times this still works, but sometimes there are strange issues that arise, because Dell didn't test it to develop a fix. Dell doesn't and can't provide ongoing support for all operating system revisions in perpetuity.

You can probably find refurbished models through third-parties selling them with Windows 7, which is probably sign enough that you can run Windows 7 reliably on an M6300, but that is their own doing and not Dell's.

Again, this is the case with most OEMs ... you want to run a different OS, it is up to you to make it work and find drivers, etc., but there is usually a way to do it.

Most the Windows Vista 64 Bit drivers will run on Windows 7 64 Bit. Windows 7 64 Bit will also have some drivers inbuilt which will be newer than the Vista 64 Bit drivers. Theres a few updated drivers here which will be better. This driver set should get you up and running.

BIOS:

http://downloads.dell.com/FOLDER01530796M/1/M6300A15.exe

See Updating the BIOS.

Dell System Software:

http://ftp.dell.com/FOLDER88677M/8/Dell_System-Software_A03_R282538.exe

Intel Chipset Device Software:

https://downloadcenter.intel.com/download/20775/Intel-Chipset-Device-Software-INF-Update-Utility-

Card Reader:

http://ftp.dell.com/chipset/Ricoh_R5C833_A00_R240788.exe

NVIDIA AutoDetect:

http://www.nvidia.co.uk/Download/Scan.aspx?lang=en-uk

Input (Alps):

http://dellwindowsreinstallationguide.com/driver-sets/dell-touchpad-drivers/

Audio:

http://downloads.dell.com/FOLDER96129M/13/R171788.exe

Wireless:

Check the hardware IDs:

http://dellwindowsreinstallationguide.com/downloading-drivers-checking-hardware-ids-and-downloading-and-installing-dell-system-drivers-in-the-correct-order/checking-hardware-ids-in-the-device-manager/  

Intel 4965 (Variant A Intel):

https://downloadcenter.intel.com/download/22116/Intel-PROSet-Wireless-Software-and-Drivers-for-Windows-7-

Dell Wireless 1390/1395/1490/1505 (Variant B Broadcom):

http://downloads.dell.com/network/DELL_MULTI-DEVICE_A37_R295615.exe

Dell Wireless 360 Bluetooth (Bluetooth was optional):

http://ftp.dell.com/network/R231570.exe

Dell Quickset:

http://downloads.dell.com/app/R161516.EXE

Dell ControlPoint System Manager:

http://downloads-us.dell.com/FOLDER35332M/1/

UPEK:

http://ftp.dell.com/Security/R173506.exe

http://ftp.dell.com/Security/R233632.exe