Why Is My PC So Slow? 7 Common Causes & How to Fix Them

A slow computer is one of the most common frustrations for home and business users. The good news? Most causes are simple and fixable.

Common Causes

• Too many startup programs
• Low RAM
• Malware or pop‑ups
• Failing hard drive
• Lack of updates
• Overheating
• Background processes and services

Quick Fixes

1. Disable unnecessary startup apps
2. Uninstall unused programs
3. Run built‑in Windows Disk Cleanup
4. Check for Windows updates
5. Scan for viruses or malware
6. Clean the PC physically (dust!)
7. Upgrade to SSD for instant speed boost