I keep a test VM around mainly to watch Windows preview builds, and KB5124010 is a pretty honest snapshot of where the platform is right now: more AI surface area on top, and the same update-quality problems underneath. Below is what actually shipped, what broke, and which dates deserve a spot on your calendar.
What KB5124010 adds, and what it costs
The most interesting change is Copilot key remapping. If the dedicated Copilot key on your keyboard has never matched your workflow, the preview build now lets you reassign it to something you'll actually press. The build also brings emoji 17.0 and a batch of File Explorer fixes.
The catch is stability. Testers running the preview report random crashes and freezes, not tied to any single action. That pattern is familiar: AI-flavoured features tend to land in preview channels before the rough edges are sanded off, and if you depend on your machine daily, the preview ring is the wrong place to be.
Windows 11 ships more often than Windows 10, and it shows
The recurring complaint is that Windows 11 breaks more often than Windows 10, and the explanation is fairly simple. Microsoft changes the operating system too frequently. Every new patch can introduce fresh bugs, while older issues stay open. Testers and developers don't get enough runway to validate everything before it reaches users.
September alone was rough: Remote Desktop, USB audio, and File History all had problems. A nine-month comparison of updates across the two systems concluded that Windows 10 came out more stable. A single comparison isn't proof of a systemic trend, but it lines up with what a lot of people report in practice. Microsoft keeps nudging users toward Windows 11, and patches like these give the sceptics fresh ammunition.
24H2 Home and Pro lose security updates on October 13, 2026
This is the date that matters most for anyone who set up a machine and forgot about it. From October 13, 2026, Windows 11 24H2 Home and Pro stop receiving security updates. After that point the OS is simply unprotected against new threats. The fix is to confirm which version you're on and move to 25H2.
On Windows, the quickest sanity check is the Run dialog:
Win + R -> winver -> Enter
You can also go through Settings, System, About. If you see 24H2 and the machine is Home or Pro, plan the upgrade well before the cutoff rather than the week of.
Separately, Microsoft is ending support for three Windows 11 applications. They can be removed straight from the system: Settings, then Apps, then Installed Apps. The exact app names weren't specified, so it's worth reviewing that list yourself rather than assuming.
September 2026: File History fixed, Always On VPN confirmed broken
File History, the built-in backup tool, stopped working after the September 2026 security updates. Users reported that it wouldn't start at all, or that it couldn't see any backup targets. Microsoft later shipped a fix, so if you were affected, installing the latest cumulative update is the first thing to try.
Always On VPN failed after the same round of updates, and Microsoft has confirmed the problem. This one hurts corporate setups that rely on permanent VPN connections rather than dialling in manually. As of the reporting, the confirmation exists but a follow-up patch is what you're waiting for, so keep an eye on the update channel.
There's also a broader annoyance: users on both Windows 10 and Windows 11 describe freezes that kick in a few minutes after boot, traced to a mandatory Windows feature. Not fatal, but not something you can easily switch off either.
When Windows Update stays silent, force the upgrade
If a new Windows 11 version is already out but Windows Update isn't offering it, you don't have to wait. Microsoft officially provides the Update Assistant for exactly this case. Grab the tool from Microsoft's site, run it, and follow the prompts. It's a legitimate first-party route, not a workaround.
Not everyone is waiting around for Redmond
Some public-sector teams are exploring alternatives. The Dutch government is building its own operating system on top of NixOS, an open alternative to Windows aimed at public institutions. The project drew 364 points and 158 comments on Hacker News, which tells you the interest is real. The appeal is partly technical: NixOS lets you reproduce a system from a declarative configuration, which suits controlled, auditable environments.
It's early, and a government desktop OS is a long game. But it's a useful signal when institutions start treating the update treadmill as a risk rather than an inconvenience.
Takeaway
If I had to reduce this to a checklist: check whether you're on 24H2 and plan the move to 25H2 before October 13, 2026; stay off preview builds on machines you need working; and if File History or Always On VPN broke after the September updates, apply the available fixes and watch for the VPN patch. The AI features are genuinely nice to have, but the update cadence is the part that will actually cost you time.
This article was originally published on AI Release — https://ai-release.org. If you want to keep up with releases like this, there's also a channel: https://t.me/ai_release1.
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