We have a Dell Precision 390 and want to upgrade this to a Windows 7 64-bit operating system. Several months ago I noticed driver support for Windows 7 64-bit for the Dell Precision 390 model but currently the driver and downloads site is not supporting any such drivers for Windows 7. It seems the support has been withdrawn. At best, it supports only Windows Vista 64-bit. Can anyone elaborate on why there is no driver support for the Dell Precision 390 for the Windows 7 64-bit platform?
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Dell supports only the OS that was originally installed on your model. That doesn't mean you can't upgrade. If it can run vista 64 bit, it can run win 7. Test it by running the Windows Upgrade Advisor. That will let you know what hardware/software needs to be removed or changed to upgrade. Win 7 has many more drivers and you should not need Dell to supply any. The manufacturer's site for individual hardware should help if you need anything.
Windows Vista drivers work with Windows 7 in the same way that WINDOWS 2000 drivers worked for XP.
If there are not WIN7 specific drivers for your hardware try the Windows Vista drivers.
Would this work for dell 390 32 bit if I used the vista 32bit drivers. And would I use all the drivers or just the network ones that windows are telling me are requiring attention? If it doesn't work, will it crash my computer?
I don't understand. Go to www.dell.com/.../optiplex-390 and change the dropdown for the Operating System to Windows 7 32-bit and use those drivers. Dells supports both 32-bit an 64-bit Windows 7 on these machines, so there is no reason to use Vista drivers or to think that they would crash your system.
When I put precision 390 into the box, and then scroll to choose the windows version, it doesn't give me an option for windows 7
Ha ha ... saw 390 and assumed Optiplex (since I have several dozen of those with W7x86)
In that case, you can use the Vista drivers or use the Windows 7 drivers directly from Broadcom, but since neither is tested by Dell on a Precision 390 with Windows 7, there is no guarantee it won't crash your system, but it is unlikely.