Windows 11 Requirements 2026: TPM 2.0, CPUs and Checks
Windows hardware & licensing · every requirement and CPU list traced to Microsoft spec and Learn pages, re-checked monthly
Quick Answer
What changed by 2026 is context, not the list: Windows 10 is past end of support, 25H2 is the current servicing track, and the checklist now doubles as a pre-buy check for any Windows machine.
03 How do you check your PC in 10 minutes? 04 What if the CPU is not on the list?
05 What do the requirements mean when buying keys? 06 FAQ
• The official list: TPM 2.0, Secure Boot-capable UEFI, a whitelisted 64-bit CPU (1GHz+, 2+ cores), 4GB RAM, 64GB storage — plus DX12 graphics and a 720p display. Unchanged since launch.
• CPU whitelist in practice: Intel 8th-gen or newer, AMD Ryzen 2000 or newer, selected Celeron/Pentium — official lists live on Microsoft Learn.
• PC Health Check is the official one-click verdict; tpm.msc and msinfo32 are the manual cross-check.
• Requirements gate the install, not the license: a valid key activates on any eligible machine — check hardware first, then buy.
| Windows 11 Pro OEM key BEST SELLER
Best for: Eligible machines ready for 25H2
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| Windows 11 Home key
Best for: Home PCs passing the same checklist
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| Windows 11 Pro Official (retail)
Best for: Compliance-sensitive and business buyers
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| Windows 11 IoT Enterprise LTSC 2024
Best for: Fixed-purpose devices on the LTSC clock
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01What are the requirements, item by item?
Microsoft’s spec page lists the minimums, and every line has a reason: a 1GHz+ dual-core 64-bit CPU from the supported lists, 4GB RAM, 64GB storage, UEFI firmware with Secure Boot capability, TPM 2.0, DirectX 12 graphics with WDDM 2.0, and a 720p display larger than 9 inches. Your device must also be running Windows 10 version 2004 or later to upgrade in place through Windows Update.
The list has not changed since launch — in late 2026 the same seven items decide eligibility, which is what makes it a reliable buying checklist: every new PC on a store shelf ships meeting it, and every older machine either does or does not, permanently. There is no probation period and no re-test.
Bottom line. seven items decide eligibility, they have not moved since 2021, and they are the same for a 2015 desktop and a 2026 laptop.
02Why TPM 2.0 and Secure Boot made the list
TPM 2.0 is a dedicated security chip (or firmware equivalent) that stores encryption keys and credentials outside the main CPU — it is the hardware root for BitLocker, Windows Hello and firmware attestation. Requiring it moves every Windows 11 PC to hardware-backed protection by default, which is why Microsoft calls it non-negotiable rather than recommended.
Secure Boot capability is its companion: the firmware verifies the signature of everything that loads before Windows. On a modern machine the pairing is invisible; the two checks are what stop bootkits at the front door. Signing certificates for that chain rolled over in October 2026 — a maintenance event, not a crisis, as our Secure Boot certificate guide explains — and eligible PCs handled it through normal updates.
Bottom line. TPM 2.0 and Secure Boot are the two items that turn every eligible PC into a hardware-attested machine by default.
03How do you check your PC in 10 minutes?
The official one-click route: run PC Health Check and press “Check now” — it names the failing item line by line (TPM, CPU, RAM, storage). For the manual cross-check, tpm.msc shows whether a TPM is present and ready, msinfo32 shows Secure Boot state and the processor, and winver shows what the machine currently runs.
1Download PC Health Check from Microsoft (linked in the references) and install it.
2Open it and press “Check now” — you get a pass, or a list naming the exact failing requirement.
3If only TPM fails, the fix is often firmware-side: many PCs ship with TPM 2.0 present but disabled in UEFI settings — Microsoft’s enable guide (references) covers Asus, Dell, HP and Lenovo.
In practice, the most common “fail” we hear about is not missing hardware at all — it is TPM sitting disabled in firmware, or a machine mid-update producing a temporary no. That is why the order matters: PC Health Check first, firmware settings second, shopping last.
Bottom line. PC Health Check gives the verdict, tpm.msc and msinfo32 confirm the detail — and a TPM-disabled firmware fix rescues most false negatives.
04What if the CPU is not on the list?
The CPU list is the enforced gate. Intel 8th-gen and newer, AMD Ryzen 2000 and newer, and selected Celeron/Pentium parts are on Microsoft’s supported lists (both lists are linked in the references); everything older is off-list, and off-list means the supported install path refuses the machine no matter how much RAM you add.
Microsoft’s own position on unsupported installs is that they are not recommended and sit outside the update guarantee. We keep this guide on the supported path: the bypass mechanics are a separate, larger topic, and none of them change the underlying verdict that an off-list CPU cannot become on-list. A machine that fails here is the same conversation as the Windows 10 after-ESU four paths — upgrade within the family, repurpose, or replace.
Bottom line. an off-list CPU is an unsupported-install conversation, not a key problem — and no amount of RAM or storage changes the list.
05What do the requirements mean when buying keys?
Requirements and licensing are independent rails. The requirements gate the install; a key licenses the software — a valid key activates on any eligible machine, and no key makes an ineligible machine eligible. That is why the buying order matters: run the check, confirm eligibility, then buy, letting the Windows 11 Pro key buying guide handle channel and pricing questions.
Once eligible and activated, the machine rides the normal servicing train — 25H2 today, with the 24H2-to-25H2 enablement switch showing how small the version moves are on this track. A PC that passes the checklist today is serviced the same way as one bought yesterday.
Bottom line. check hardware first, then buy — the two rails never cross, and a key can neither fix nor break eligibility.
06Frequently asked questions
Does Windows 11 still require TPM 2.0 in 2026?
Yes – the requirement list has not changed since launch. TPM 2.0, Secure Boot-capable UEFI, a supported CPU, 4GB RAM and 64GB storage remain the official minimums, and PC Health Check still measures exactly those.
Can a PC with an unsupported CPU run Windows 11?
Bypass methods exist, but Microsoft’s position is that unsupported installs are not recommended and fall outside the update guarantee. This guide stays on the supported path: if the CPU is off-list, treat the machine as a Windows 10-era device and plan accordingly.
Will buying a new key make an ineligible PC eligible?
No. Requirements are hardware facts and keys license software – the two rails never cross. A new key activates an eligible machine; it cannot add a TPM or move a CPU onto the supported list.
Where should I buy a key once my PC passes the check?
From a channel you can verify – our Windows 11 Pro listing is the same-day option, and the buying guide in the related reading explains OEM, retail and volume channels with the checks that matter before checkout.
External References
- Microsoft — Windows 11 specs and system requirements
- Microsoft Learn — Windows 11 supported Intel processors
- Microsoft Learn — Windows processor requirements (Intel/AMD/Qualcomm)
- Microsoft Support — Enable TPM 2.0 on your PC (Asus/Dell/HP/Lenovo)
- Microsoft — PC Health Check app (official download)
Written by the KeyStarter Editorial Team, with AI-assisted research; sources verified and linked above.