Issue Description
High CPU usage can make Windows sluggish, cause overheating, and reduce battery life.
Common Causes
- Background apps or services
- Malware
- Driver or Windows Update loops
- Browser tabs/extensions
Step-by-Step Solution
Step 1: Identify the Process Using CPU
- Press Ctrl + Shift + Esc to open Task Manager
- Go to the Processes tab
- Click the CPU column to sort descending
- Note the app or service consistently using high CPU
Step 2: Restart or End the Problematic App
- Right-click the high-CPU process
- Select End task
- If it’s a needed app, reopen it and observe CPU again
Step 3: Disable Startup Causes
- In Task Manager → Startup
- Disable non-essential apps (leave security software enabled)
- Restart Windows
Step 4: Check for Malware
- Open Windows Security → Virus & threat protection
- Click Scan options → Full scan → Scan now
Step 5: Update Drivers and Windows
- Open Settings → Windows Update
- Install all pending updates
- Open Device Manager and update chipset, storage, and network drivers
Explore Further
- Use Resource Monitor for deeper analysis
- Perform a clean boot to isolate services
Prevention & Best Practices
Limit startup apps and keep drivers updated.