When you find that your Windows computer is slow or out of disk space, you need a professional and useful PC cleaning and optimization tool to help you clean up and optimize your Windows computer. iSumsoft System Refixer is one such tool that enables you to maximum clean up and optimize your Windows computer with just a few mouse clicks. It works on Windows 10, 8, 7, Vista, and other Windows operating systems, and it works on all brands of PCs and laptops, such as HP, Lenovo, Dell, Acer, Toshiba, Asus, etc.

Key features of iSumsoft System Refixer:

- Scan and examine the computer quickly and thoroughly.
- Let you clean up your Windows computer with one click.
- Clean out all kinds of junk files to free up disk space.
- Clean out invalid registry files to make Windows system more stable.
- Clear unnecessary caches and cookies to make your PC more secure.
- Disable unneeded startup programs to speed up Windows startup.