A Windows update is supposed to improve performance and security — but sometimes it does the opposite. If your laptop became slow right after an update, you’re not alone. This usually happens due to background processes, driver conflicts, or new settings introduced by the update itself.
Let’s go through the fixes in the right order, starting with the most common causes.
1. Give Windows Time to Finish Background Tasks
After an update, Windows often runs indexing, optimization, and security scans in the background.
What to do:
- Leave the laptop plugged in
- Let it sit idle for 20–30 minutes
- Avoid heavy apps during this time
If your laptop fan is running constantly during this phase, see our guide on
Laptop Fan Always Running Even When Idle? Here’s Why and How to Fix It
as both issues are often connected.
2. Restart (Yes, Even If You Already Did)
Windows updates sometimes require multiple restarts to fully apply changes.
- Restart your laptop again
- Don’t use Sleep or Hibernate
- Perform a full restart from the Start menu
This alone fixes performance issues for many users.
3. Check Startup Apps (Very Common Cause)
Updates can re-enable startup apps you previously disabled.
Steps:
- Press Ctrl + Shift + Esc
- Open the Startup tab
- Disable apps you don’t need immediately (launchers, sync tools, updaters)
- Restart your laptop
If your system also feels hot or sluggish when idle, this may be related to background load — check Windows Laptop Overheating When Idle: Causes and Fixes
4. Update or Roll Back Drivers
Driver issues after Windows updates are extremely common.
What to check first:
- Graphics driver
- Network adapter
- Chipset driver
Steps:
- Open Device Manager
- Right-click key devices → Update driver
- If the problem started immediately after the update, try Roll Back Driver instead
5. Check Disk and CPU Usage
Some updates cause abnormal disk or CPU activity.
- Open Task Manager
- Sort by CPU and Disk
- Look for processes stuck at high usage
If disk usage is constantly near 100%, Windows may still be indexing or stuck on update-related tasks.
6. Disable Windows Visual Effects
On older or budget laptops, updates can enable effects that slow things down.
Steps:
- Press Win + R → type
sysdm.cpl - Open Advanced tab
- Under Performance, click Settings
- Select Adjust for best performance
- Apply and restart
7. Uninstall the Last Windows Update (If Nothing Else Works)
If performance dropped immediately after a specific update:
- Open Settings → Windows Update
- Go to Update history
- Select Uninstall updates
- Remove the most recent one
- Restart
Only do this if the slowdown is severe and persistent.
Final Tip
Most post-update slowdowns are temporary or caused by background tasks and drivers. Give Windows time, check startup apps, and verify drivers before assuming something is broken.
If your laptop is slow and losing battery faster than usual after updates, you should also review
Laptop Battery Draining Fast Even When Not in Use: Fixes That Actually Work,
as updates can affect power management.
