It's just Microsoft's way of forcing everyone to Windows 10.
Well I'm forgoing the free upgrade to 10 and installing Linux Mint.
I've been dual booting Linux Mint, now at version 18 with 5 years of support, with Windows, beginning with XP Pro, for over 7 years (since Mint 7 or 'Gloria'), and can attest that it's indeed a fine OS. Especially for those still on unsupported versions of Windows & there's no cash for a new(er) computer that'll run Windows 7 or above.
Many of these computer can run Windows 7, especially the later XP & Vista models (many of whom downgraded from 64 bit Vista to 32 bit XP Pro). A low cost hardware upgrade may be needed or desired, such as a more powerful CPU on eBay for as little as $15 & a modern GPU on promo new on several sites, including Newegg & Amazon, some of which doesn't require a 6 pin power port (such as the GeForce 750 Ti variants) & has up to 2GB GDDR5 VRAM. Some also uses much less power than an installed GPU from a decade back, and as long as there's a PCIe graphics slot, even 1st gen, it's compatible with models that are PCIe 3.0 (just as USB 3.0 ports works with USB 2.0 & 1.1 devices).
If it's too old & has no PCIe slots, then Linux Mint also may be the best option.;-)
I agree with what you're saying, these issues weren't taking place until W10 came along, and while it's likely the culprit, it's hard for me to recommend a non-Windows OS on a Windows forum (except as noted above). Running Linux Mint is much safer than XP, probably over 250x so. It also requires no AV/AM apps, unless sharing files with Windows computers & others running Windows. In the case of the latter, it's courteous to scan the files before passing along, to include emails. Many will setup a Linux computer as a Mail server, in this instance, security is needed & there's options (ESET NOD32 AV for Linux being one option) on promo, two years, $59.99).
Thing is though, there's millions of off lease computers with Windows 7 Pro 64 bit pre-installed for $80-150 that are decent computers, plus has a physical TPM port for security (W7 Ultimate is required for this), though 8.1 & W10 Pro can use this option.
For the cost of a can of soda per day, one can have a much new(er) computer, a few vendors still carries Windows 7 Pro in new computers. That's what I did, sacrificed a few things, though not completely, and was able to have nicer computers, will be working on a new build featuring an already purchased & running i7-4790K, as soon as the components comes in from Newegg. My unopened W7 Pro install package (Full version) purchased 3-4 years back at Newegg is awaiting a home, and if update troubles crosses my path, know what to do.
Cat