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Laptop running slow [notebook] — LG Help Guide: Causes, Checks &

If your computer feels slow, you can use the Task Manager to help identify which process or application is causing high CPU usage.

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What to Check First

  1. After installing Windows, automatic updates may be downloaded and installed, causing slowdowns when using Windows.
  2. This can happen if your notebook PC is infected with a virus or malware.
  3. Have you checked to see if there is a processor that is causing excessive work on the CPU, the computing device?
  4. Press [Ctrl + Alt + Delete] on the keyboard simultaneously and then select Task Manager.
  5. When the following appears, click the [Details] button.
  6. Click the Processes tab, then click the CPU column header to sort processes by CPU load.
  7. If a specific process has high CPU usage, please research it by checking the Internet for that process by name.
  8. Select the suspicious process and then click the [End Task] button in the bottom right.
  9. If your computer feels slow, you can use the Task Manager to help identify which process or application is causing high CPU usage.
  10. This guide was created for all notebook computer models. Images or content presented herein may differ from your product.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for Laptop running slow [notebook]?

After installing Windows, automatic updates may be downloaded and installed, causing slowdowns when using Windows.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

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Read the Official LG Guide