Introduction
High CPU usage can stem from rogue apps, services, or hardware issues. Learn how to identify culprits in Task Manager, apply software fixes, and optimize system settings to bring CPU loads back to normal.
Step‑by‑Step Instructions
1. Identify Resource Hogs
- Open Task Manager (Ctrl + Shift + Esc) and click Processes.
- Sort by CPU to see top consumers
2. Close or Uninstall Unnecessary Apps
- Right‑click offending processes and choose End task, or uninstall via Start > Settings > Apps
3. Update Windows & Drivers
- Run Settings > Windows Update > Check for updates; update device drivers in Device Manager
4. Scan for Malware
- Use Windows Security or a trusted antivirus to run a full system scan—malware can drive CPU to 100%
5. Disable Background Apps & Services
- In Settings > Privacy & security > Background apps, turn off unnecessary apps.
- Open Services.msc, locate SysMain or similar, right‑click Properties, set Startup type to Manual
6. Check Hardware & Cooling
- Ensure proper ventilation; clean dust from fans, consider reapplying thermal paste if overheating persists
FAQs
Q: Is 100% CPU normal?
A: Temporary spikes during updates or heavy tasks are normal; sustained 100% indicates an issue.