The telemetry "myth" and rumors are no reason not to install this app. Somebody somewhere started that mess with misinformation and then failed verifying anything before writing about it. Then others haphazardly repeated and repeated it again.
See the How-To Geek:
Relax, NVIDIA's Telemetry Didn't Just Start Spying on You.
PCGAMER:
Nvidia's telemery monitor is not spying on you. No conspiracies here.
The Telemetry used by NVIDIA is used to collect crash and bug reports and applicable system information needed to determine the hardware specifics the program crashed with. This information, in turn, is used to fix the program so it stops crashing on us. That's a good thing!
If you are worried about your privacy, cancel you Internet service because your ISP knows way more than anything NVIDIA or Microsoft know, or are trying to know. Your ISP knows everything you do on the Internet, plus where you live, your real name, birthdate and billing information. And for sure, get rid of your cell phone because they know everything your ISP knows, plus who you've talked to and texted, where you have been, where you are currently standing (including the aisle in the store you are in
!!), the direction you are heading and how fast you are traveling.
That last paragraph could be the reason for all of my problems.
Right.
So should I just install drivers from the official Nvidia site
I generally recommend using the drivers provided by the card maker. This is because card makers often tweak their cards to make them unique among the dozen or so other cards from other makers that are using the same GPU. Or you could just let Windows 10 do it. Contrary to what some want us to believe, W10 is actually very capable of picking the right drivers for us.
If I knew simply re-installing Windows would solve the problem I would do just that. I'm just afraid that I would be a matter of time before it happens again.
This is why re-installing Windows should ALWAYS be a last resort option. Especially with hardware issues, re-installing the OS often does not solve the problem because we end up using the exact same hardware, drivers and configuration. And even when it does fix the problem, you don't learn anything to help prevent recurrence. This is on top of all the other set-backs and inconveniences of starting from scratch.
Have you tried uninstalling your graphics drivers and doing a "cold" reboot? By "cold" I mean to uninstall the drivers then shutdown the computer AND unplug the computer from the wall for about 15 - 20 seconds. Unplugging (or, if your PSU has a master power switch, setting that to Off "0" for a few seconds) will totally remove the +5Vsb standby voltages across all points on the motherboard, thus ensuring any residual settings or voltages are returned to their quiescent states.