Why Is My Computer So Slow?

A slow computer destroys productivity. Here's how to diagnose and fix the problem.

Common Causes

• Too many startup programs — Disable unnecessary ones in Task Manager
• Low disk space — Keep 15-20% free
• Not enough RAM — Check usage in Task Manager
• Old hard drive — Upgrade to SSD for dramatic improvement
• Malware — Run a full antivirus scan
• Too many browser tabs — Each tab uses memory

When to Replace

If your computer is 5-6+ years old and still slow after these fixes, it may be time for replacement.