I was setting up a new Dell Optiplex 790 today and after installing (Windows 7 pro 64 bit edition), I was trying to download the drivers for it and having a hard time downloading them from Dell’s website. I went to my laptop and had no probleming downloading them. I then updated the nic driver for the Optiplex and still had problems. While after searching on Google for awhile I came across a fix:

You need to go to an elevated command prompt. You can read about how to get to that here: http://www.sevenforums.com/tutorials/783-elevated-command-prompt.html

Once you have the elevated command prompt type in:  

netsh interface tcp set global autotuninglevel=disabled

You should a message that says “Ok.”

Now you should have no problems with downloading files as this solved my problem.  This is the first time since working on a windows 7 machine that I have ever experienced this. Hope this helps you.

RG

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