Slow Laptop or Slow Internet? A Safe Troubleshooting Checklist
Simple checks to describe a performance problem, separate device and connection symptoms and know when to involve IT.
Begin with the task that feels slow
A video call freezing, a document opening slowly and a laptop taking a long time to start can have different causes. Write down the task and when the delay occurs. Avoid installing a “PC cleaner” or changing settings before you understand the symptom.
Check whether the problem is local
Try another ordinary application on the same device. If everything feels sluggish, the device may need investigation. If only one service is affected, check whether a colleague experiences the same issue. This narrows the discussion; it does not prove the cause.
Record whether you are at the office, at home or on another connection. If several people using the same network are affected, tell support which services still work.
Make a small number of safe checks
- Save your work and close applications or browser tabs you no longer need.
- Check whether the device reports a restart pending, then follow your organisation's process.
- Confirm that storage is not nearly full without deleting unfamiliar files.
- On Windows, use Task Manager to observe busy applications if you are comfortable doing so.
- Check that a laptop is ventilated and not sitting on a soft surface that blocks airflow.
Change one thing, then observe
If a restart is appropriate, note whether it improves the same task. Do not repeatedly reboot shared network equipment or interrupt a device being used by other staff. Leave security agents and business startup applications enabled unless your IT provider approves a change.
A speed test is one observation, not a complete diagnosis. Record the result, time and connection type if support requests it. Video calls can be affected by instability or latency even when a headline download number looks acceptable.
Know when to stop
Contact support if the problem persists, work is blocked, the device becomes unusually hot or unexpected security messages appear. A managed device may need administrator checks, hardware testing or a review of the application.
Give support your notes: affected task, time, other devices, connection and the checks you performed. That is more useful than guessing that the computer needs replacing.
Use recurring problems as a service signal
If the same issue returns, ask for an owner and an investigation plan. Your MSP should help decide whether configuration, connectivity, hardware or an application supplier needs attention.
Our managed IT services and network services can help define that next step.
Official reference: Microsoft Windows performance guidance.