Windows 11 Problems After an Update
Did something break after a Windows update? Here are the problems people hit most — and where to get help. This page names the problem in plain words; it doesn't give the repair steps.
🚧 The guided fix is coming to the app — this page points you to the right place, it isn't the fix itselfMicrosoft is now rolling out Windows 11, version 25H2 (the 2025 Update) to eligible PCs, and it usually installs on its own in the background. Most updates go fine — but on some machines a big update, or one of the smaller monthly ones, leaves something not working: a slow PC, a device that went quiet, or a computer that won't start the way it did yesterday.
If that's you, you're in the right place. Pick the problem that matches what you're seeing below. Each one opens a plain-language page describing that issue — and the guided, step-by-step fix for it is being built into the WindowsHelper app (coming soon). Windows' own tools don't always catch these, which is exactly the gap the app is meant to close.
Trouble that started with the 25H2 update itself
Windows 11 25H2 update problems → Trouble tied to the Windows 11 2025 Update (25H2) specifically — from the install itself to how the PC behaves once it's on.The most common problems people report
- The update won't finish installing Windows Update keeps trying, fails, or rolls itself back without ever completing. See this problem →
- The update is stuck at a percentage It sits at the same percent for a long time and never seems to move on. See this problem →
- Your PC won't start after updating The computer no longer boots normally, or gets stuck before it reaches the desktop. See this problem →
- A blue screen keeps appearing The PC crashes to a blue error screen and restarts, sometimes in a loop, after the update. See this problem →
- The screen is black after the update Windows seems to be on, but the display stays black with little more than a cursor. See this problem →
- Wi-Fi or the network stopped working The internet, Wi-Fi, or Ethernet quit working right after the update installed. See this problem →
- Bluetooth is missing or won't connect Bluetooth vanished from settings, or your devices no longer pair, since the update. See this problem →
- Your printer stopped working The printer that worked yesterday now shows offline, won't print, or isn't found. See this problem →
- There's no sound anymore Speakers or headphones went silent after the update, with no obvious reason. See this problem →
- The PC feels slow and the fan runs hard Something is pushing the processor high, making everything sluggish and hot. See this problem →
- Disk usage sits at 100% Task Manager shows the disk maxed out constantly, freezing the rest of the PC. See this problem →
- You want to undo the update You'd rather go back to how things were before the update landed. See this problem →
How WindowsHelper is being built to help
Each page above describes the problem in plain words — it does not walk through the repair. That guided, step-by-step fix is being built into the WindowsHelper phone app: you'd tell it what's wrong from your phone, it's designed to find the right fix, and routine fixes are meant to run automatically while anything higher-risk pauses to ask for your OK first. No account is planned, and nothing is designed to run until you send it.
The app itself is coming soon. What you can use today is the free PC Companion — the Windows-side app that the phone app connects to — which is available to download now. Join the launch list below and we'll email you the moment the app is ready.
Common questions
Why did my PC get slow right after a Windows update?
It's common for a PC to feel slower for a while right after a big update. Windows is often still finishing work in the background — re-indexing your files, re-registering drivers, and running its own security scan — and that competes with everything else for the processor and disk. A driver that no longer matches the new version can also be behind it. This page only describes what's happening; the guided, step-by-step fix lives in the WindowsHelper app, which is coming soon.
Why did my Wi-Fi, Bluetooth, printer, or sound stop working after the update?
A feature update can replace or reset a driver — the small piece of software that lets Windows talk to a device. When the new driver doesn't match your exact hardware, that device can go quiet, disappear from settings, or refuse to connect, even though nothing is physically broken. Windows' own tools don't always catch it. Naming the problem is what this page is for; finding and walking you through the fix is what the WindowsHelper app is being built to do, and it's coming soon.
Is it just me, or does a Windows update break things for a lot of people?
You're not imagining it. Each feature update reaches millions of very different PCs, so a change that's fine on most machines can still cause trouble on yours. Microsoft publishes known issues and fixes them over time, but that can lag behind the day your own PC starts acting up. This page lists the problems people report most so you can name yours; the guided fix for each one runs in the WindowsHelper app, coming soon.
Want the fix the moment it's ready?
Join the launch list and we'll email you when WindowsHelper can walk you through problems like these.