First, the Windows 10 installation doesn't always install the "correct" drivers for everything on the computer. Check the various manufacturer's websites for updated drivers for motherboard/chipset, audio, and especially video since that seems to be the major issue here. The default drivers installed by Microsoft are frequently lacking in the video department and should be asy to check for the GTX.
Next, before you attempt to upgrade to version 1607 again, please follow the instructions in below. It seems as though the Windows 10 "upgrade" process may not install all the files correctly, or maybe they're damaged, or maybe something else, but running Chkdsk has fixed quite a few of these minor glitches. Try running Chkdsk in "repair" mode to find any damaged files and correct them. Start by opening a command prompt as an admin. RIGHT click on the Start button, choose "Command Prompt (Admin). Once there, type chkdsk /f /r /x, leaving the appropriate spaces between the letters as shown, then press the Enter key. You should see a note that it can't be run till a restart is done, type "Y" for yes, then press the Enter key again. Close the command prompt and restart the computer. Chkdsk will run upon restart and will take quite a while to finish.. Don't panic when the progress bar stays at 10% for a long time. It's fairly normal and the Chkdsk process may take a couple of hours.
When it's finished, it will boot to your normal startup/lock screen and you can login normally and then see if things are working correctly again.
Hope this helps.
Grif
Hello! I recently put together a computer and sent it in to a computer store (very high reviews) and they installed windows 10 and drivers needed (so they told me). I've been working about 10 hours today on trying to get this computer updated with 0 luck. I have an Asus Z170-A motherboard, 32 gigs of ram, Geforce GTX 1080 and an i7-6700 CPU @ 4 ghz, easily able to handle anything today. My question may be a windows 10 related problem. I was using windows 7 on an old computer with no problems, I hook this computer up with windows 10 to my TV monitor that was working perfectly and the edges of the screens are cut off (no amount of tv tweaking or anything else I could find will fix it), the video quality is terrible, I can't go past 480 p. This is a Sony smart tv and I was using 1080p with my old computer with no problems. When I do go past 480p, the video lags extremely bad. There is no longer any sound coming out of my TV, although I can still use headphones and get sound. I can't play any games, even newer ones that require very little to play. They lag very bad even on the lowest settings. I can't open certain games on steam, for example it says I need to have dx 10 or higher to play one of them and I have dx 11.2 installed. It won't let me update to 12. I can't update from Windows 10 v 10 to v 1607, I can download it but then it just fails after I install it and says my system isn't compatible. Sorry, lots of info I hope you understand. Thanks for listening/reading and responding. Any help would be very appreciated!

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