The best free PC optimizer 2021: speed up your PC with a few clicks

By Tech Radar

Iolo System Mechanic

"Enjoy a faster, cleaner PC with the best PC optimizer"

IObit Advanced SystemCare Free

"A hands-off approach to optimization that's ideal for novice users"

Piriform CCleaner

"Eliminate unnecessary files, clean the registry and manage apps"

Ashampoo WinOptimizer 2019

"A fast scanner plus a suite of well designed maintenance tools"

Razer Cortex

"Made to help gamers wring extra performance from their PCs"