Microsoft made it official in June: Windows 11's next big release, version 26H2, arrives this fall — and alongside the announcement came the detail that matters for anyone with an aging machine: a supported-PC list. Reviewers who have tracked the preview builds are already calling it an update you shouldn't skip. Whether your computer is invited to the party comes down to a handful of numbers — processor generation, memory, storage, TPM — and the good news is that checking them takes two minutes and requires no tools. Here is how to check your computer specs, what each one means for October, and what to do if yours comes up short.
The short answer: press Windows + I, go to System, then About — that screen shows your processor, RAM, and Windows version. Type msinfo32 in the Start menu for the deeper report, and tpm.msc to confirm TPM 2.0. Our evergreen guide to checking PC specs walks every method with screenshots; below is what the numbers mean in this particular October.
Settings → System → About is the front door: processor model, installed RAM, and system type at a glance, with your current Windows version just below. msinfo32 is the full inventory — motherboard, BIOS version and mode, Secure Boot state — the readout a technician asks about first. dxdiag covers the graphics side. Task Manager's Performance tab adds the live view: how much of that RAM is actually in use on an ordinary afternoon, which quietly answers whether an upgrade would change your life. And tpm.msc settles the security-chip question — "TPM is ready for use, specification version 2.0" is the sentence you want.
Two deadlines share the same month this fall, and your specs decide which one is yours. If you are already on Windows 11, 26H2 mostly wants what 24H2 wanted — machines comfortably inside the Windows 11 hardware rules take the October release in stride, and the supported-PC details Microsoft published in June are chiefly about the oldest edge of the fleet. If you are still on Windows 10, October is bigger: the consumer security-update bridge ends the same season, so the spec check doubles as a compatibility check — supported CPU (roughly Intel 8th-gen or Ryzen 2000 and newer), TPM 2.0, Secure Boot. A surprising number of "incompatible" machines fail only because TPM or Secure Boot sits switched off in the BIOS, a five-minute enable rather than a new computer.
Read the shortfall before spending on it. Low RAM is the most fixable: 8GB machines strain under modern multitasking, and a bump to 16GB transforms them — worth doing even in this year's pricier memory market, because it is still a fraction of a new PC. A mechanical hard drive is the great impostor — machines called "too old" are often just drive-bound, and an SSD clone makes the same hardware feel new. An unsupported CPU is the honest wall: for most desktops and all laptops, crossing it means a different machine, and the choice becomes a planned replacement or, for the ambitious, a custom build specced deliberately against 2026's inflated component prices. The $75 diagnostic (credited toward any work) reads your exact machine and prices each path honestly — including "this one is fine as it is."
Every October, machines that technically qualify limp through a major update and feel worse afterward — not because the update is heavy, but because the machine was already at its limit: disk nearly full, RAM maxed by the browser alone, cooling choked with dust. The spec screen will not tell you that; the Task Manager Performance tab and your own ears will. A pre-update once-over — drive health, free space, memory pressure, temperatures — is cheap insurance in September and a queue in late October. Ask us how we know.
Not sure what your specs mean?
Bring the machine to 75 N Bridge St, Somerville or call 908-428-9558. $75 diagnostic credited toward any work: we read the specs, check 26H2 and Windows 11 readiness, and quote upgrades honestly. Serving Somerset, Middlesex, Hunterdon, and Mercer counties since 2011. Details on our New Jersey computer repair page.
How do I check my computer specs on Windows?
Settings → System → About shows processor, RAM, and Windows version. For the full inventory type msinfo32 in the Start menu; for graphics, dxdiag; for the security chip, tpm.msc; for live usage, Task Manager's Performance tab.
What specs does Windows 11 26H2 need?
Broadly the established Windows 11 rules: a supported CPU (roughly Intel 8th-gen or AMD Ryzen 2000 and newer), TPM 2.0, Secure Boot, 4GB+ of RAM and 64GB+ of storage — with Microsoft's June announcement detailing the supported-PC list for the fall release. Machines comfortably meeting Windows 11 requirements today should take 26H2 in stride.
My PC says it isn't compatible. Is that final?
Not always. A meaningful share of failures are TPM or Secure Boot simply disabled in the BIOS, which is a five-minute fix. CPU-generation failures are the real wall. Worth a proper check before any money moves.
Is 8GB of RAM enough in 2026?
It runs Windows 11, but modern browsing and office work press against it daily. 16GB is the comfortable floor, and the upgrade — even at this year's memory prices — remains far cheaper than replacing the machine.
Should I upgrade my PC before October?
If it is short on RAM, running a mechanical drive, or still on Windows 10, yes — September beats the late-October rush, and the same visit preps the machine for both 26H2 and the Windows 10 cutoff.
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