ブログ Old PC Running Slow? Simple Performance Boost Tips That Actually Work (2026 Guide)
Is your old PC running painfully slow? Apps take forever to open, your browser freezes, and even basic tasks feel frustrating. Before spending hundreds of dollars on a new computer, there’s good news: you can significantly improve performance with simple, safe optimization steps.
In this guide, you’ll learn how to speed up an old PC, improve Windows performance, reduce lag, and make your computer feel faster — even if it’s 5–10 years old.