How to Fix Lagging Laptop Windows 11: Simple Solutions to Speed Up

A laptop can feel slow for reasons that do not apply in the same way to a desktop. First, identify whether the slowdown happens only on battery, when it is plugged in, after the laptop gets warm, or during one specific app. That observation helps you choose a fix instead of applying every performance setting at once.

1. Check whether power or charging changes the slowdown

1. Connect the laptop to its normal charger and compare the same task for a few minutes.
2. Open Settings > System > Power & battery.
3. Under Power mode, keep Balanced for everyday work, or choose Best performance temporarily for a demanding task while power is available.

Windows offers different power modes for plugged-in and battery use. Best performance can improve responsiveness, but it uses more power, drains the battery faster, and can make a laptop run warmer. If the laptop is slow only on battery, compare the mode before changing other settings. If the charger will not stay connected, the battery does not charge normally, or the laptop reports a power problem, use the laptop maker’s official support and diagnostic tools for that model rather than installing a driver from an unrelated download site. Microsoft explains the choices in its Windows power-mode guide.

2. Rule out heat and airflow problems

1. Place the laptop on a firm, flat surface so its vents are not covered.
2. Disconnect unneeded external devices and close the demanding app for a moment.
3. After it cools, repeat the same task and note whether the lag returns only when the chassis or fan becomes hot.

A soft surface such as bedding can block vents. Persistent heat, a fan that runs constantly, unexpected shutdowns, or a swollen battery calls for the manufacturer’s support instructions or professional service. Do not open a battery or attempt an internal repair just to chase a performance problem.

3. Find the app or process using the laptop’s resources

1. Press Ctrl + Shift + Esc to open Task Manager.
2. On Processes, select the CPU, Memory, or Disk column to sort it while the lag is happening.
3. Close an app you recognize and are not using. Do not end an unfamiliar Windows process just because it is near the top of the list.
4. Open the Performance tab to see whether one resource stays unusually busy during the same task.

Record the app name, whether the laptop is on battery or plugged in, and whether it is hot. That is more useful when you need to update an app, remove an extension, or contact support.

4. Reduce startup load without disabling essential software

1. In Task Manager, select Startup apps.
2. Review the publisher and the startup impact where Windows shows it.
3. Right-click only the apps you do not need as soon as you sign in, then choose Disable.
4. Restart the laptop and compare the startup time and the same slow task.

Leave security software, touchpad or hardware controls, and anything you do not recognize enabled until you can identify it. Disabling a startup item does not uninstall it, so you can re-enable it if a feature stops working.

5. Make space carefully

1. Open Settings > System > Storage.
2. Select Temporary files and review every category before selecting Remove files.
3. Check Downloads and Recycle Bin separately; those folders can contain files you intend to keep.
4. Turn on Storage Sense only if its cleanup choices match how you use the laptop.

Low free space can contribute to poor performance, but do not use a fixed percentage as a rule. Remove files you have checked, move large personal files to storage you trust, or uninstall an app you no longer use. Microsoft documents the temporary-file and Storage Sense controls in its free up drive space guide.

6. Install Windows and appropriate driver updates

1. Open Settings > Windows Update and select Check for updates.
2. Install offered Windows updates, then restart when Windows asks you to.
3. For an available optional driver, go to Windows Update > Advanced options > Optional updates, review the driver, and select Download & install only if it applies to your laptop or device.

Windows installs recommended drivers through Windows Update; optional drivers are not installed automatically. If an update is needed for a laptop-specific component, use the model’s official manufacturer support page to identify the compatible driver. Microsoft describes the optional-driver process in its driver update guidance.

7. Scan for malware, then restart and retest

1. Open Settings > Privacy & security > Windows Security > Virus & threat protection.
2. Select Quick scan.
3. Follow Windows Security’s result and restart the laptop if a scan or update requires it.
4. After restarting, open only the app that was slow and repeat the original task.

Microsoft’s Windows Security guide explains the scan options. If the laptop remains slow after these checks, take the notes from Task Manager, the charging comparison, and the heat check to the manufacturer or a qualified technician. For a broader Windows 11 checklist that also applies to desktop PCs, see our guide to fixing a slow Windows 11 computer.