Microsoft’s June 2026 Patch Tuesday update for Windows 11, KB5094126 (OS Builds 26200.8655 and 26100.8655), is drawing a wave of complaints. Across community forums and business IT environments, people are reporting machines that freeze after installing it – and, more worryingly, computers that boot into a BitLocker recovery screen demanding a recovery key before they will start.
If that key was never saved somewhere safe, the device can be locked out completely. For a small business, that can mean a staff member sitting idle for half a day, or a critical machine – a reception PC, a point-of-sale terminal, a director’s laptop – out of action with no obvious way back in.
This is a good reminder that security updates are essential, but they are not risk-free. Here is what we suggest:
- Find your BitLocker recovery keys now. They are usually saved to the Microsoft or Microsoft 365 account the device is signed in with. Confirm you can actually retrieve them before you need them – not during an outage.
- Do not rush this update onto every machine at once. Test it on one non-critical PC first, watch it for a day, then roll it out. Patch you should – just in a controlled way.
- Check your backups are current. A recent, tested backup turns a locked machine from a crisis into an inconvenience.
Patching is one of the simplest and most effective things a business can do to stay secure – but it needs a plan, not a panic. If you are not sure whether your team’s PCs are affected, whether your recovery keys are safe, or whether your backups would actually save you, it is worth a quick check before the next update lands.
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