Hello everyone,
I just got a GTX 1080 Ti and I have a gaming system already running a GTX 980 Ti with about 600GB worth of games on it. My internet connection is kinda slow so I would like to avoid reinstalling Windows 10 Pro on that machine. Can I just put the GTX 1080 Ti into that computer without any drawbacks? If not - what do I need to do?
Kind regards, Tytan 
Edit: Corrected typo in title
I’d just uninstall the graphics driver and any other Nvidia software, swap cards, and install the driver again. You could probably even just swap cards and not worry about the driver, but I’d rather have a clean slate myself.
Regardless, you won’t need to reinstall Windows.
I think the very moment I uninstall the nvidia driver, Windows 10 will push a driver install over Windows Update. Do I need to worry about it?
Now that I think about it … Maybe I download the new driver, unplug the ethernet cable and uninstall the old driver then, install the new card and offline install the new driver …
Just make sure you have the newest stable driver, then change the card.
The drivers have the required files/ settings for all the supported cards included, so will work with the new card.
You may have to adjust some settings afterwards, but you will be able to boot and get into the settings on the off chance it defaulted any
as in, I have an older card, but the drivers I have would support newer cards if I had them.
There is a limit to how long old cards are supported, but the most recent generations are supported
Ok, thanks for your opinions.
For the sake of information on the internet I will provide my experience under this thread in a couple of days
I would download the DDU util from Guru3D and run that and select the uninstall option for installing a new GPU. It should then power down the system at which point you do the swap. Win10 will boot with the driver install feature temporarily disabled so you may end up with a low res setting but that’s only long enough to start the nVidia driver install . That’s the cleanest option next to a complete re-install of the OS.
As mentioned download the latest driver first as well. You could just physically swap them and let Win10 sort its self out for a couple of minutes then run the latest nVidia driver and select the clean install option after selecting custom install.
Personally I always untick the 3D Vision & GeForce Experience options which you can do after selecting the custom install.