Issue Description
The C: drive fills up, triggering warnings and slowing Windows performance.
Common Causes
- Temporary files
- Old Windows updates
- Large user files
Step-by-Step Solution
Step 1: Use Storage Cleanup
- Open Settings → System → Storage
- Click Temporary files
- Remove unnecessary items
Step 2: Clean System Files
- Search Disk Cleanup
- Click Clean up system files
- Remove previous Windows installations
Step 3: Move Personal Files
- Move Videos, Downloads to another drive or cloud
Step 4: Uninstall Unused Apps
- Open Apps → Installed apps
- Remove unused large programs
Explore Further
- Expand system partition
- Enable Storage Sense
Prevention & Best Practices
Monitor disk usage monthly.