If your laptop suddenly becomes slow after a Windows update, you are not alone.
Many Windows 11 users recently reported slow boot times, freezing apps, high CPU usage, and lagging performance after updates. Recent Microsoft updates in 2026 have caused installation and performance issues for many systems.
The good news is that in most cases, this problem is temporary and can be fixed easily.
In this guide, we will explain why your laptop is slow after a Windows update and the best working fixes in 2026.
Why Does a Laptop Become Slow After a Windows Update?
After installing a major Windows update, your laptop may slow down because Windows starts several background tasks such as:
- Rebuilding the search index.
- Installing drivers.
- Cleaning old update files.
- Scanning with Windows Defender.
- Optimizing system services.
This is very common during the first few hours after an update.
Sometimes, a buggy update may also cause issues, which Microsoft has recently acknowledged in multiple Windows 11 releases.
1. Restart Your Laptop
The first and easiest fix is to restart your laptop.
A restart helps Windows complete pending update tasks and clear temporary system load.
Go to:
Start > Power > Restart
Wait a few minutes after the restart and check the performance again.
2. Wait for Background Update Tasks to Finish
Sometimes Windows continues working in the background for 1–2 hours after an update.
Open Task Manager by pressing:
Ctrl + Shift + Esc
Check if these processes are using high CPU or disk:
- Windows Update.
- Windows Defender.
- Search Indexer.
If yes, let them finish first. This is one of the most common causes.
3. Disable Unnecessary Startup Apps
Too many startup apps can make your laptop feel slow after an update.
Open:
Task Manager > Startup Apps
Disable apps you do not need, such as:
- Discord
- Spotify
- unnecessary launchers
- background software
This can significantly improve boot speed.
4. Clear Temporary Files
Temporary update files can slow down your system.
Go to:
Settings > System > Storage > Temporary Files
Delete:
- Temporary files
- Update cleanup files
- Cache files
This often improves speed quickly.
5. Update Graphics and System Drivers
Windows updates sometimes install drivers that do not work well with your laptop.
Go to:
Device Manager > Display Adapters
Update:
- Intel graphics
- NVIDIA / AMD graphics
- chipset drivers
This fix is especially helpful if your laptop is lagging or freezing.
6. Change Power Mode to Best Performance
Sometimes Windows changes performance settings after updates.
Go to:
Settings > System > Power & Battery
Change Power Mode to:
Best Performance
This can make a huge difference, especially on laptops.
7. Uninstall the Recent Update (If Nothing Works)
If the issue started immediately after a specific update, uninstalling it may help.
Go to:
Settings > Windows Update > Update History > Uninstall Updates
Remove the latest update and restart.
For official Windows support, visit: Microsoft Windows Help
This is especially useful if the update is known to be problematic. Microsoft recently pulled and replaced several faulty updates.
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