Advice · Updated September 2026

Windows 10 support has ended. Here is what actually matters.

You have until 12 October 2027, not next month. Most of what people are being told about this is out of date.

Written for home users in Luton and the surrounding towns. No sales pitch, and the honest answer includes the cases where you do not need to do anything yet.

The short version

If you read nothing else

You are not out of time

Standard support ended in October 2025, but consumer Extended Security Updates now run to 12 October 2027. Microsoft extended this in June 2026, and a great deal of advice still online has not caught up.

Your PC may already qualify for Windows 11

Before accepting that it cannot, check the BIOS. On a lot of machines the only failed requirement is TPM and it is switched off by default. Turning it on often makes the free official upgrade available.

Back up before you do anything

Whichever route you take. Far more people lose photos during an upgrade than ever lose them to a virus, and a backup makes every other decision reversible.

The distinction that matters

What ended, and what did not

Two different things get muddled here constantly, and the difference is not a technicality.

Windows security patches fix flaws in Windows itself. Those are what stopped in October 2025 unless you enrol in Extended Security Updates.

Antivirus definition updates teach your security software to recognise new malware. Microsoft has said those continue for some time yet. They are genuinely worth having, and they do not close an unpatched hole in Windows.

So “my antivirus is still updating” is true and is not the same as “my computer is patched”. You can have the first without the second.

The other thing worth saying plainly: the risk from an unpatched Windows 10 machine is not that it stops working tomorrow. It is that it accumulates. Every month that passes without patches adds another known flaw that will never be fixed on that machine.

Your options

Four routes, and who each one suits

1. Stay on Windows 10 and enrol for updates

Keeps you patched until October 2027 with no disruption. Sensible if the machine does what you need and you would rather not change anything yet. This is the right answer far more often than people expect.

2. Upgrade to Windows 11 properly

Free, supported, and the best outcome if your PC qualifies. Check the BIOS first, as below, because a lot of machines qualify once TPM is switched on. Full security features, no watermark, nothing to work around.

3. Install Windows 11 unsupported

It works. You give up the hardware security Windows 11 is designed around, and Microsoft's line is that unsupported machines are not entitled to updates. Fine for a spare or a media PC. Think harder about the computer you bank on.

4. Replace the machine

The right answer when the PC is genuinely old and would need money spending on it anyway. It is the wrong answer when the only problem was a BIOS setting, which is why it is worth checking before anybody sells you a new computer.

Worth checking first

The TPM setting that makes old PCs eligible

Windows 11 requires a TPM, a small security chip. Most machines from roughly 2016 onwards have one built into the processor. On a great many of them it is switched off in the BIOS by default, so Microsoft's compatibility check reports the PC as unsupported when it is not.

It is called fTPM on AMD systems and PTT on Intel ones. Turn it on, run the check again, and the official free upgrade often becomes available.

If going into the BIOS is not something you fancy doing, that is completely reasonable and it is a five minute job for somebody who does it regularly. An easier first step: look up your exact make and model online, because manufacturers publish whether a machine is Windows 11 eligible.

This one point is the difference between spending nothing and spending several hundred pounds, which is why it is worth checking before you are sold anything.

If it is a work machine

Business computers are a different calculation

Business Extended Security Updates are priced per device and the cost doubles each year, and to join in year two or three you must pay for the years before it. Over the full three years that is roughly £400 a machine, which for most small businesses is money better spent on a replacement that is not on borrowed time.

I would also not run an unsupported Windows 11 install on a machine used for business or for anything sensitive. The hardware security you give up is exactly the part that matters most on those machines. See business IT support if you need a hand working out which of your machines actually need doing.

Questions

What people are actually asking

Is my Windows 10 computer still safe to use?

It is not receiving Windows security patches unless you have enrolled in Extended Security Updates. Microsoft extended consumer ESU, and you can enrol at any point until the programme ends on 12 October 2027. Antivirus definition updates continue separately, but they are a different thing: definitions spot known malware, they do not close a hole in Windows itself.

When does Windows 10 support actually end?

Standard support ended on 14 October 2025. Consumer Extended Security Updates now run until 12 October 2027. A lot of coverage still quotes October 2026, which was correct before Microsoft extended it in June 2026.

My PC says it cannot run Windows 11. Is that final?

Often not. On a great many machines the only requirement that fails is TPM, and it is simply switched off in the BIOS. It is called fTPM on AMD systems and PTT on Intel. Switch it on, run the check again, and plenty of PCs suddenly qualify for the official free upgrade with full security features and no workaround.

Can I install Windows 11 on an unsupported PC?

Yes, and it works. You give up the hardware security Windows 11 is built around, and Microsoft's position is that unsupported machines are not entitled to updates. That is a reasonable trade on a spare or a media PC. I would think much harder about it on the computer you do your banking on.

What should I do before any of this?

Get a backup done. Far more people lose their photos during an upgrade than ever lose them to a virus, and it is the one step that makes every other option recoverable.

Is it worth just buying a new computer?

Sometimes, and you should get an honest answer rather than a sales one. If a machine is eight years old and needs work anyway, the money is better spent on a replacement. If it is a decent PC where only TPM was switched off, replacing it would be a waste.

Not sure where your machine stands? It is a phone call and it costs nothing, including if the answer is that you do not need to do anything yet. Get in touch.

Credit where it is due

This page came out of an argument, more or less

A good deal of what is above was sharpened by a back and forth with Computer Guy Dunstable, who had written his own piece on what the end of Windows 10 actually means and put it in front of a local group. We came at it from slightly different angles, disagreed on a couple of points in public, and the result is more useful than either version was on its own.

The figures on business Extended Security Updates are his, and so is the conclusion that once you have paid for three years of them you are most of the way to the price of a machine that is not on borrowed time. He is right on both counts, and that section exists because he worked it out first.

He also holds two positions I did not cover and should have. He will not install Windows 11 on an unsupported machine used for business or for anything sensitive, and he refuses remote access outright. Both are stricter than most people in this trade, and both are held for the right reasons.

He has been fixing home computers for over twenty years, a lot of it in Luton, and built his first one in 1980. If you are Dunstable way and would rather deal with someone closer to home, he is worth knowing about.

Thank you for the sanity checking. Two people arguing about the detail where everyone can see it is usually how the rest of us end up with the right answer, and it beats either of us simply asserting it.

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