Is if the OS supplied by Dell works or not. When I get a Dell (or such named machine) it works out of the box or it goes back. Installing Windows from scratch could result in issues like yours. I'd go back to the factory condition and if that fails, return it as a defective machine.
I have a Dell XPS 13 with Windows 7 and have been plagued by the Fresco Logic USB issue since I've had it (since winter 2012). This is error code 31 if that means anything. In the past I was able to either roll back the driver update or redownload the driver from Dell's website (the one from August 22, 2012), but for some reason that isn't working anymore and hasn't for awhile (over a year). The right USB port was working on and off but is now mechanically broken so I'm trying to fix the left one.
The problems most people were facing were that when they would delete the driver and then restart their computer, the faulty updated driver would redownload. I'm not even getting to that problem--the driver won't even install:
I ran a troubleshooting thing and got this:
When I try to download the drivers from Dell directly, I get the following:
(immediately goes to this)
Note that, admittedly, when I've tried to redownload the drivers, there are already drivers downloaded but not installed on here from the automatic update.
This is what comes up when I press "view log" (or at least, this is what seems to be the important part):
[11/15/15 12:43:45] <!--[if gte IE 7]><img src="logo.png" /><![endif]--><!--[if lte IE 6]><img src="logo.gif" /><![endif]-->
[11/15/15 12:43:45] (MUPXMLParser::GetResultName): *** Vendor Return Code is not found in Mup.xml
[11/15/15 12:43:45] Name of Exit Code:
[11/15/15 12:43:45] (DupAPI::GetReturnCode): *** Unable to find DUP value for:
[11/15/15 12:43:45] Exit Code set to: 1 (0x1)
[11/15/15 12:43:45] Result: FAILURE
[11/15/15 12:55:49] Open file: C:\Users\MyName\AppData\Local\Dell\UpdatePackage\Log\XPS-L321X_Chipset_Driver_R9WKR_WN_184.108.40.206_A02 (6).txt
Normally guides say to delete the .93 version and download the August 22, 2012 version from Dell, but that isn't downloading at all here so I'm kind of at a loss. It appears that the right USB port stuff downloaded correctly, but since the little thing inside the usb port fell out a few months ago, I can't check that.
Has anyone had this problem before? Is there a way to switch the usb ports around? I don't need a usb3.0 port.
I have also tried deleting the file out of the Windows32 folder, as described here: http://en.community.dell.com/support-forums/laptop/f/3518/p/19495043/20320308#20320308. That didn't work either I was still unable to download install the driver and got the same results as I did above.
Let me know if there is anything else I need to provide for help on this!