Windows 10 Support Is Over: Upgrade Your PC or Replace It?

End of support doesn't brick your PC. Your files, apps, and games keep working. What changes is what stops arriving: security patches for newly discovered vulnerabilities, bug fixes, and, over time, support from third-party software vendors who gradually drop the old OS.

• No more free security updates — new vulnerabilities found after October 2025 go unpatched on your machine unless you pay for ESU.
• The practical risk compounds over time. Month one after EOL is low drama; a year-plus in, you're carrying a growing list of publicly known, unpatched holes.
• App developers, game launchers, and browsers keep working for now but will drop Windows 10 support on their own schedules.
• Paid Extended Security Updates (ESU) exist as an official bridge — more on that below.

Windows 11 requires TPM 2.0 and a supported CPU — roughly Intel 8th gen or AMD Ryzen 2000 and newer. Here's the part that saves people money: many PCs built after 2017 have TPM 2.0 in hardware but disabled in BIOS, so they fail the compatibility check while being one toggle away from passing.

• Press Win+R, run tpm.msc — it reports whether a TPM is present and active, and its version.
• Run msinfo32 and check System Summary for Secure Boot state and BIOS mode (UEFI is required).
• If tpm.msc says no TPM found, reboot into BIOS and look for 'Intel PTT', 'AMD fTPM', or 'TPM' under security settings — on many boards it ships disabled.
• Check your exact CPU model against the requirement: Intel 8th gen (Coffee Lake) or newer, Ryzen 2000 series or newer.

If your TPM checks out but your CPU is too old, what happens next depends heavily on your platform. This is where AMD's AM4 socket earns its reputation: it hosted everything from Ryzen 1000 through Ryzen 5000, so a first-gen Ryzen system can often take a fully supported modern CPU with no new motherboard, no new RAM, and no reinstall.

• On AM4 with a Ryzen 1000-series CPU: a BIOS update plus a drop-in chip like the Ryzen 5 5600 gets you Windows 11 eligibility and a large performance jump in one move. Check your board vendor's CPU support list first.
• You keep your DDR4 RAM — which matters more than usual, since buying new memory in 2026 means paying crisis prices.
• On Intel pre-8th-gen (7th gen and older): there's no drop-in fix. Those platforms need a new motherboard and CPU, and typically new RAM — which turns 'small upgrade' into 'most of a new PC'.

Normally, when an OS deadline pushes you off an old platform, the advice is simple: put the money into a fresh build. In 2026 that advice needs an asterisk, because the two components a rebuild can't avoid — RAM and SSD storage — are in a genuine price crisis.

• DDR5 prices rose more than 110% over 2026 on AI datacenter demand; a 32GB DDR5-6000 kit that was about $90 in mid-2025 runs $450+ as of mid-2026, and analysts expect no meaningful correction before late 2027.
• NAND flash prices multiplied roughly 4.2-4.5x from Q4 2025 through Q2 2026, with further increases projected through late 2026.
• GPU prices are rising as well, while CPU prices are stable — which quietly favors the CPU-swap path over the full-rebuild path right now.
• Translation: a rebuild forced by Windows 11 costs meaningfully more today than the same rebuild would have in 2025, or likely will in late 2027.

That reshapes the decision. If a cheap path to eligibility exists on your current platform — a BIOS toggle or an AM4 CPU swap that reuses your RAM and storage — it's unusually attractive right now. If you're on a platform with no cheap path (pre-8th-gen Intel), a full replacement may still be right, but budget honestly for memory and storage, and buy only the capacity you'll actually use.

Microsoft offers paid Extended Security Updates for Windows 10, which keep security patches flowing after end of support. ESU is not a destination — it's a bridge, and used deliberately it's a reasonable one.

• Good use of ESU: you're on unsupported hardware and want to wait out 2026's memory and storage prices before rebuilding, or you need specific software validated on Windows 11 first.
• Bad use of ESU: paying indefinitely to avoid a decision. The cost recurs and the destination doesn't change.
• If you take ESU, put the saved rebuild money on a calendar: analysts expect memory prices to correct no earlier than late 2027, which conveniently gives an ESU year a natural endpoint.

You'll find guides describing a registry key (AllowUpgradesWithUnsupportedTPMOrCPU) that lets Windows 11 install on unsupported CPUs. It's real, but it deserves honest framing: it still requires at least TPM 1.2, and Microsoft explicitly labels such installs unsupported — meaning updates aren't guaranteed to keep arriving on that machine.

As a primary plan, that's a shaky foundation: you'd be trading a known-unsupported OS for a maybe-supported one. It's most defensible as a stopgap on hardware you already intend to replace — not as the long-term answer for your main PC.

Work down this list and stop at the first row that matches your machine:

• Compatible CPU, TPM shows disabled or missing: enable fTPM/Intel PTT in BIOS, re-run the compatibility check, upgrade to Windows 11 free. Total cost: zero.
• AM4 board with an unsupported Ryzen 1000 CPU: BIOS update, drop in a Ryzen 5 5600 (check current pricing), keep your RAM and storage, upgrade to Windows 11. The cheapest meaningful hardware path there is.
• Pre-8th-gen Intel: no drop-in fix. Either buy an ESU year and rebuild when memory/storage prices correct (expected 2027), or rebuild now with right-sized capacity if the machine is failing anyway.
• Hardware fully compatible but you just never upgraded: back up and move to Windows 11 now — you're carrying unpatched risk for no reason.
• PC also struggling in games or daily work: don't solve only the OS problem. Check what's actually bottlenecking the machine before deciding where the money goes.