What you’re seeing
- The upgrade check reports 'This PC can't run Windows 11' on a machine that otherwise performs well.
- The details say TPM 2.0 must be supported and enabled, or that the PC must support Secure Boot.
- The check states that the processor isn't currently supported for Windows 11.
- Some identical-looking PCs in the office pass the check while others fail.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- The PC has a firmware-based TPM, but it is switched off in the BIOS or UEFI settings.
- The PC boots in legacy BIOS mode from an MBR disk, so Secure Boot can't be turned on.
- The processor predates the generations on Microsoft's supported list, which typically excludes Intel 7th generation and older chips even when they perform well.
- Outdated firmware doesn't present the TPM or Secure Boot to Windows correctly.
- Machines from the same model line were ordered with different processors or firmware versions.
Why it matters
Windows 10 has reached its end of support, so PCs that can't move to Windows 11 are left without regular security updates. That creates real exposure to ransomware and can conflict with cyber insurance and compliance requirements. Misjudging which machines need replacing either wastes money on hardware you didn't need to buy or leaves vulnerable devices in service longer than intended, and budgeting a hardware refresh takes time.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Do we have to buy new computers?
Not always. Many machines only fail because of a firmware setting or disk layout, while those with unsupported processors do need replacing. We tell you which is which before you spend anything.
Can we just bypass the compatibility check?
Workarounds exist, but Microsoft doesn't support Windows 11 on hardware that fails its requirements, and such machines may not receive updates reliably. For business PCs we don't recommend it.