Windows 11 Running Slower After Recent Update – Anyone Else Experiencing This

Question

Windows 11 Running Slower After Recent Update – Anyone Else Experiencing This

david james 0

After installing the latest Windows 11 update, I've noticed slower boot times and occasional lag when opening applications. I've already checked startup programs and disk usage, but the issue persists. Has anyone else experienced similar performance problems? If so, what solutions worked for you?

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2 answers

Answer 1

Hi david james,

I understand how frustrating it is when a recent Windows 11 cumulative update introduces system wide lag and slow boot times, especially since you have already ruled out the obvious culprits like disk usage and startup applications. When performance degrades immediately following a deployment, it is usually caused by corrupted update cache components or an accumulation of invalid system file fragments rather than basic configuration settings. To resolve this issue, you should open Command Prompt with administrative privileges by typing cmd in the Start search bar, right clicking it to select Run as administrator and executing the deployment image repair command DISM.exe /Online /Cleanup-image /Restorehealth.

Once that deployment operation completes successfully, you should follow it up in the same command window by running sfc /scannow to scan, verify and automatically replace any protected system files that were corrupted during the update integration process. If the operating system still exhibits stuttering or lagging after a complete reboot, the update package itself might have an unpatched compatibility bug with your specific hardware drivers and you can quickly roll it back by opening Settings, navigating to Windows Update, selecting Update history, scrolling down to click Uninstall updates, and removing the most recently installed KB package.

I hope this information helps you resolve the issue. If you need further assistance, please free feel to leave a comment; and don't forget to click "accept answer" if this answer clarifies your issue!

Answer 2

Slower performance after a Windows 11 update is common and can have multiple causes. Several built‑in steps can help diagnose and improve performance beyond just checking startup apps and disk usage.

Try the following in order and test after each step:

Install all pending Windows and driver updates Recent cumulative updates often include performance fixes.

Select Start > Settings > Windows Update > Check for updates.
Install everything offered and restart.
Then check Advanced options > Optional updates and install any available drivers or non‑critical updates.

Run a malware scan Malware can appear right after an update because it was dormant or because protections changed.

Select Start > Settings > Privacy & security > Windows Security > Virus & threat protection.
Run a Quick scan and restart if prompted.

Adjust visual effects for performance If the lag is mostly UI related (opening windows, animations), reduce visual effects:

Select Start, type Adjust the appearance and performance of Windows, and open it.
On the Visual Effects tab, select Adjust for best performance.

Set Power mode to Best performance (if on AC power) If on a desktop or plugged‑in laptop and battery life is not a concern:

Select Start > Settings > System > Power & battery.
In Power mode, choose Best performance.

Optimize drives If using an HDD or a hybrid drive, optimization can help boot and app launch times:

Select Start, type Defragment and Optimize Drives, and open it.
Select the system drive (usually C:) and choose Optimize.

Monitor resource usage for heavy processes Even after trimming startup items, some processes may spike CPU, memory, or disk after an update.

Press Ctrl + Shift + Esc to open Task Manager.
On the Processes tab, sort by CPU, Memory, and Disk and close apps or background tasks that are consistently high and not needed.
Review the Startup apps tab again to disable anything non‑essential that may have been re‑enabled by the update.

Free up drive space If the system drive is low on space, Windows can slow down significantly, especially after an update.

Open File Explorer > This PC and check free space on the system drive.
If space is low, use Storage settings or Cleanup recommendations to remove temporary files, old downloads, or unused apps.

Restart the PC regularly After a major update, a couple of full restarts (not just sleep/hibernate) can complete background optimization and indexing and often reduce lag.

If performance is still poor after these steps and all updates are installed, consider more advanced repair steps such as DISM and SFC (system file repair) or, as a last resort, an in‑place repair/clean install, but only after backing up important data.

References: