How to Fix Slow Computers: 13 Steps (with Pictures). See Step 1 below to learn how to speed up both Windows and Mac computers. Method 1 Windows 1 Run virus and malware scans. Viruses and other malware are one of the primary causes of slow performance. Adware can bog down your computer and tie up your.
1. Make sure you have the latest updates for Windows and device drivers 2. Restart your PC and.
