ESET is based in Slovakia, + it is up to you if you consider it safe to allow them a backdoor. I mean Eugene Kaspersky was sponsored by the KGB, but his company has also discovered more state-sponsored cyberattacks than anyone. It's also infamous for crafting false positives for competitors' products. You have to trust
someone.
The Microsoft telemetry "spy" patches are mostly about collecting crash data to improve Windows (necessary after the massive layoffs in product validation because the new model is for Consumer Windows users to be patch beta testers for Business users). As they have no interest in improving XP-based Windows, there's no reason to have such patches for those. I don't think the patches are malicious and consider it more objectionable that if you are signed into your Microsoft account in Windows 10, any documents you are working on are uploaded to Microsoft
just in case you suddenly decide to switch to editing them on your phone or tablet or even X-Box One! But then in order to Google Cloud Print from Android you have to send your document to Google too. The Eula helpfully says:
By submitting, posting or displaying the content you give Google a perpetual, irrevocable, worldwide, royalty-free, and non-exclusive license to reproduce, adapt, modify, translate, publish, publicly perform, publicly display and distribute any Content which you submit, post or display on or through, the Services.
BTW the Intel Management Engine (ME) is
in the MCH or PCH, not the CPU. AMT is just for a local administrator to
use Vpro features, so Intel (plus whoever they give the key to) doesn't need it. Can you imagine when someone cracks it or loses the key into the wild? It'll be like when quantum computers show up to easily break AES and everyone will have to buy new hardware. After all remote bricking is one of the "features."
I don't know what's in AMD as their DASH went nowhere but Ryzen is likely to have ExactTrak. Open-source hasn't really proved safe either given how many longstanding huge vulnerabilities were discovered in 2016.
I suppose in order to minimize the number of parties you have to trust, using iE in 2k3 or POSready 2009 with Microsoft Forefront Antivirus would do it. Should be safe enough but don't forget you have to trust your ISP as well!
As safe as possible would be to not patch or ever go online with that system, and to use an old enough computer running
Tails whenever you needed to. At a coffeeshop
😉