By now, the Windows 10 conversation probably feels finished.

Support ended October 14, 2025, so you hopefully replaced or upgraded the office desktops, and then the whole thing dropped off your meeting agenda.

That was the right move — for the machines on the list. The trouble might be with the list itself.

The key is to remember computers that may not be under management by Cycrest. Those may include home computers, occasionally used computers, and even older computers you are holding onto in case you ever need a spare.

The Kitchen Table Computer With a Badge

Somebody on your team works from home a couple of days a week. Their work laptop is new, but the computer in the kitchen — the one the family shares, the one they check email on when the laptop’s charging — is a Windows 10 machine from 2018. And it signs into your Microsoft 365. 

What is so concerning about these? 

If you do use those to connect to the office system. Once that machine connects, it’s inside.

Your firewall doesn’t stop it because it’s carrying valid credentials—an unpatched machine with a badge.

Everything you spent on the office refresh protects the office. It does nothing for the machine at the kitchen table, and that machine can open your email, your files, and in some cases your whole network.

Machines Nobody Uses, but Everything Depends On

For Cycrest, when we visit a new potential Client, as we walk past the desks, we often see a PC running the door badge system in a back closet that nobody is managing. Another one is driving the security cameras.

Then you have the tower under the counter that the label printer needs, the older machine wired to the warehouse scale, and the box in the server room that the phone system or some fifteen-year-old billing program refuses to live without.

We often see many vulnerabilities with new potential clients. Sharing that news with them is always hard. 

Nobody “uses” these machines, so nobody counted them. They got lost over time and have not been managed by their current MSP. No one logs in (there might not even be a monitor attached).

But they’re on the network; they run 24 hours a day, and several of them exist precisely because something critical breaks the moment they stop.

These are the ones we find in almost every walkthrough. The company that replaced twelve desktops in September usually has three or four of these still on Windows 10 in February — not through negligence, but because a computer without a person in front of it is invisible.

The Paid Bridge Only Covers Machines You’ve Found

There’s a middle path for machines that genuinely can’t be replaced yet.

Microsoft’s Extended Security Updates program provides ongoing patches for a fee.

Treat it as a bridge, not a plan — the price doubles each year through 2028, which is Microsoft’s polite way of saying stop renting time and move.

But the program has one quiet catch: it only covers machines you’ve actually enrolled. The badge-system PC nobody knows about isn’t covered by anything. Which brings every option back to the same starting point — you can’t protect a machine you haven’t found.

Cyber insurance applications now routinely ask whether you’re running unsupported software like Windows 10.

A single undiscovered machine can turn a truthful “no” into something you’d have to explain after a claim.

Not a scare story — just a form that would be best if you could sign honestly.

Make the Real List This Week

The fix isn’t complicated.

This week, make the real list: every device that touches your business.

The ones at desks, the ones at home that sign into company email, the ones in closets nobody logs into. If it connects to your network or your Microsoft 365, it goes on the list — whether or not anyone “uses” it.

If you’d rather not do the crawling around yourself, this is one walkthrough we enjoy doing.

Cycrest will find the machines you forgot you had, then sort each one into a simple bucket: replace it, upgrade it, bridge it with paid updates, or retire it.

One call, full inventory, no judgment about what we find in the closet.

The office refresh was the easy part. The list is the real work.

If your Windows 10 list stopped at the desktops, call Cycrest for a full device walkthrough — including the machines at home and the ones nobody remembers plugging in.