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Clean Up and Optimize Your Windows System

iSumsoft System Refixer is a practical system optimization tool, which is designed to clean up and optimize the Windows operating system, so as to speed up the startup and operation of the computer.

  • Scan and examine the computer quickly and thoroughly.
  • Clean out all kinds of junk files with one click to free up disk space.
  • Clear 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.

System Requirements

Windows 10/8/7/Vista/2000/2003/2008/2012/2016 (32 bit & 64 bit)

Hardware Requirements

1GHz CPU or above, 512MB RAM or more

clean up PC

Clean Up Your PC

  • iSumsoft System Refixer helps you clean up your computer fast and thoroughly. It’s possible for you to scan and clean up all unnecessary files on your computer with one click, including junk files, unneeded temporary files, invalid registry files, residual files left by uninstalling software, useless caches and cookies, etc.

Optimize and Speed Up Windows OS

  • iSumsoft System Refixer optimizes and speeds up your Windows operating system in several ways. Use advanced scan engine to clear invalid, broken or incomplete system parameters in the Windows Registry to make your system smoother and more stable. Disable unnecessary programs that run automatically at Windows startup to speed up the Windows startup.
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Easy to Use

Even computer novices can use the software conveniently and quickly.

100% Working

The software will definitely let you gain a cleaner and faster computer.

100% Safe

The software is 100% safe and will not cause any adverse effects on your PC.

Best Compatibility

Compatible with all Windows operating systems and hardware.

How It Works

Step 1: Click on Scan to make a full scan of your computer.

Step 2: Click on Clean to clean up your computer automatically.

Watch Video

Listen to the user's statement


After cleanup, my Windows 10 is so responsive than before, thank you very much.


I cleaned up almost 50 GB files. Amazing! Thank you!

We Promise

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