Best way to speed up my windows 10 pc as running very slow

I understand your frustration completely. A slow Windows 10 PC is incredibly annoying, but let's approach this systematically with safe, non-destructive methods that won't require you to be tech-savvy or risk breaking anything if speed up Windows 10 PC.

1. Type "Adjust the appearance" in Start menu → Click "Adjust the appearance and performance of Windows"
2. Select "Adjust for best performance" (this will make Windows look plainer but much faster)
OR choose "Custom" and uncheck everything except:

"Smooth edges of screen fonts"
"Show thumbnails instead of icons"

What NOT to Do if Speed up Windows 10 PC:

❌ Don't install any "PC cleaner," "optimizer," or "boost" software

❌ Don't edit the Registry

❌ Don't disable Windows Update or Defender

❌ Don't disable system services you don't understand