How to Fix 100% CPU Usage in Windows | Boost PC Speed Instantly | Computer Tips & Tricks In this video, you will learn the easiest and most effective method to fix 100% CPU usage in Windows. This technique helps you reduce high CPU load, stop background processes, fix system lags, and instantly boost your computer’s performance. This trick is extremely useful for every Windows user who faces slow performance, freezing issues, or high CPU usage while gaming or working. ⏳ Time Stamps (4 Stage): 00