Optiplex 790 PCI Serial Port Driver Missing after Windows 10 Upgrade

Hi, 

I recently acquired an Optiplex 790 with an i5 2400 3.1GHz processor, 8GB of ram, a PNY 125GB SSD. and a Hitachi 1TB HDD. 

I installed a clean copy of windows 10 on it and all went well except the PCIe Slots wouldn't recognize my TV tuner card. 

After a looking into it I found the that the PCI Serial Port driver is missing and that this may be the most likely cause of my issue. 

To fix it I took the following steps:

1. Downloaded and intstalled the latest chipset drivers from the DELL website. These drivers are labelled for windows 10 use 

2. Down loaded this driver DRVR_WIN_R296702.EXE for the foxconn PCIe add in card driver.

3. Reinstalled windows 10 to see if the drivers would automatically update. 

Unfortunately none of that worked, the only other option i see is to possibly run the fox conn driver install in compatibility mode, but I worry that it won't work. 

Another possiblity is to install windows 7 install all the needed drivers, then install windows 10 over top to see if that fixes it. Or leave widows 7 as is. 

Has anyone else experienced this problem and resolved it? If so how? 

Has anyone been able to upgrade fully without issue?