Before you attempt a Windows system requirements upgrade, you need to know whether your current PC actually qualifies — because Microsoft’s rules for Windows 11 are stricter than anything that came before. Unlike the relatively forgiving jump from Windows 7 to Windows 10, the move to Windows 11 introduces mandatory security hardware that millions of machines simply don’t have. Get the facts now, check your status, and avoid a failed installation.
Why the Windows 11 Requirements Are So Different
The Windows 11 requirements weren’t just a checklist refresh — they represent a deliberate shift in Microsoft’s security philosophy. Windows 11 was built from the ground up to leverage hardware-level security, meaning the OS genuinely needs certain chips and firmware features to function as designed. Microsoft has been unequivocal: TPM 2.0 remains “non-negotiable” for Windows 11, and there is no plan to lower the bar. That stance excludes a huge number of otherwise functional machines that ran Windows 10 without issue.
The consequences matter beyond convenience. Windows 10 reaches its official end-of-life support date on 14 October 2025, after which Microsoft will stop issuing free security patches for it. If your PC can’t run Windows 11, you’ll need a plan — either a hardware upgrade, a new machine, or a paid Windows 10 extended security update subscription.
The Full Windows 11 Minimum System Requirements List
Microsoft’s official minimum requirements for Windows 11 are as follows. Every box on this list must be ticked — there are no optional items:
- Processor: 1 GHz or faster with at least 2 cores on a compatible 64-bit CPU or SoC (System on a Chip). Intel 8th Generation or newer, AMD Zen 2 or newer, or Qualcomm Snapdragon 850 or newer.
- RAM: 4 GB minimum.
- Storage: 64 GB or more available disk space.
- System firmware: UEFI, Secure Boot capable.
- TPM: Trusted Platform Module (TPM) version 2.0.
- Graphics card: DirectX 12 compatible graphics / WDDM 2.0 driver.
- Display: High-definition (720p) display, greater than 9 inches diagonally, 8 bits per colour channel.
- Internet connection: Required for initial setup of Windows 11 Home (and Microsoft account sign-in).
According to Microsoft’s official Windows 11 System Requirements page, these specifications are designed to ensure a reliable, secure computing experience — not to be arbitrary hurdles.
What Is TPM 2.0 and Why Does It Block So Many Upgrades?
TPM stands for Trusted Platform Module — a dedicated security chip (or firmware module) that stores cryptographic keys, handles BitLocker encryption, and underpins Windows Hello sign-in. TPM 2.0 is the version Windows 11 demands, and it’s the single most common reason a Windows upgrade check comes back as “not compatible”.
How to Check If You Have TPM 2.0
On a Windows 10 PC, press Win + R, type tpm.msc, and press Enter. The TPM Management console will tell you whether a TPM is present and what version it is. Many pre-2018 motherboards either lack TPM 2.0 entirely or ship with it disabled in the BIOS — in the latter case, enabling it in UEFI firmware settings can instantly make your PC eligible.
Checking Processor Compatibility
CPU generation is the other frequent sticking point. Intel 7th Generation (Kaby Lake) and earlier are not on Microsoft’s supported list, regardless of how fast or capable they are. AMD processors before the Zen 2 architecture (Ryzen 3000 series and earlier Athlon/Ryzen generations based on Zen/Zen+) are also excluded. If your chip was purchased before 2017, there’s a high chance it won’t pass the compatibility test.
How to Run a Windows Upgrade Check on Your PC
The fastest and most reliable way to perform a Windows upgrade check is with Microsoft’s own PC Health Check app, which gives you a clear pass or fail result along with specific reasons if your machine doesn’t qualify.
- Visit the Microsoft website and download the PC Health Check app (free).
- Install and launch it, then click Check now under the “Introducing Windows 11” section.
- The tool scans your hardware in seconds and returns either a green “This PC can run Windows 11” or a detailed list of what’s blocking the upgrade.
- If you’re blocked by TPM, head into your BIOS/UEFI settings (usually accessed by pressing Del or F2 at startup) and look for a TPM, PTT (Intel Platform Trust Technology), or fTPM (AMD) toggle.
- Re-run PC Health Check after enabling TPM — many users find that’s all it takes.
Windows 11 Requirements: Home vs Pro — Does Edition Matter?
The minimum hardware requirements for upgrade to Windows 11 are identical for both Home and Pro editions — TPM 2.0, 4 GB RAM, a compatible CPU, and so on. The edition choice comes down to features, not hardware thresholds. Windows 11 Pro adds BitLocker device encryption, Remote Desktop, Group Policy management, and Hyper-V virtualisation — features aimed at professionals and small business owners. Windows 11 Home is perfectly capable for the vast majority of personal and home-office users.
If you’re weighing up which edition suits you, take a look at our detailed breakdown of Windows 11 Pro vs Home — which version should you choose? to make the right call before you buy.
My PC Fails the Windows 11 Requirements — What Now?
Failing the compatibility check doesn’t mean you’re stuck forever. Here are your realistic options:
Option 1: Enable TPM or Update BIOS/UEFI
As noted above, many systems that appear to fail actually have TPM 2.0 support that’s simply disabled. Check your firmware settings before assuming the worst. Similarly, a BIOS update from your motherboard manufacturer can sometimes add or improve TPM support on borderline hardware.
Option 2: Upgrade Key Components
If your CPU is the blocker, upgrading to a compatible processor (staying on the same motherboard socket where possible) can be cost-effective. Pair that with a TPM 2.0 header module for older boards, and you may clear every requirement without buying a new PC.
Option 3: Buy a New PC With Windows 11 Pre-Installed
Sometimes the most practical route forward is a fresh start. New machines come with Windows 11 pre-activated and all hardware requirements met by design. At Buy Now Key, you can also find ready-built systems shipped with genuine Windows licences.
Option 4: Stay on Windows 10 With a Genuine Licence Key
If upgrading your hardware isn’t viable right now, keeping a fully licensed Windows 10 installation is a legitimate short-term strategy — just be aware that free security support ends in October 2025. A genuine Windows 10 licence ensures your existing system stays legally activated and stable while you plan your next move.
Ready to Upgrade? Get a Genuine Windows 11 Licence
Once you’ve confirmed your PC meets the Windows system requirements upgrade criteria, the next step is sourcing a legitimate Windows 11 licence. At Buy Now Key, licences are delivered instantly via email, activated directly through Microsoft’s official servers, and valid for the lifetime of the device.
Here’s a quick overview of what’s available:
- Windows 11 Home OEM — ideal for a single device, permanent activation, from €9.65
- Windows 11 Pro Retail — transferable between PCs, full Pro feature set, from €17.90
- Windows 11 Pro + Office 2021 Professional Plus bundle — both licences in one purchase, from €36.80 (regular €46.80)
Browse the full range in our Windows 11 Pro category to compare editions and find the right fit for your setup.
Frequently Asked Questions
What is the minimum RAM needed to upgrade to Windows 11?
Windows 11 requires a minimum of 4 GB of RAM. This is the same baseline as Windows 10, so RAM alone is unlikely to be the reason your machine fails the compatibility check. The far more common blockers are an incompatible processor generation or the absence of TPM 2.0.
Can I bypass the Windows 11 requirements to do a force upgrade?
Unofficial workarounds exist to install Windows 11 on unsupported hardware, but Microsoft explicitly warns against this approach. Unsupported installs may not receive future Windows Updates — including critical security patches — leaving your system exposed. It also voids any expectation of stability or compatibility. For a reliable, safe experience, meeting the official requirements is strongly recommended.
Does the Windows upgrade check cost anything?
No. Microsoft’s PC Health Check app is completely free to download and run. It gives you an instant pass/fail result and explains exactly which requirement your machine doesn’t meet, making it the quickest starting point before you spend any money on licences or hardware.
If my CPU is incompatible, will a RAM or storage upgrade fix it?
No — the processor generation requirement is independent of RAM and storage. If your CPU is not on Microsoft’s supported list (generally Intel 8th Gen or newer, AMD Zen 2 or newer), adding more RAM or a larger SSD will not change your compatibility result. You would need to replace the processor or the entire system.
Is Windows 11 Home or Pro the right choice for my upgrade?
Both editions share identical hardware requirements, so your choice should be based on features rather than compatibility. Windows 11 Home covers the needs of most personal and home-office users. Windows 11 Pro adds BitLocker, Hyper-V, Remote Desktop, and domain-join support — worth it for IT professionals, developers, or anyone managing multiple devices. Our Windows 11 Pro vs Home comparison guide covers every difference in detail.