There’s no sweeping these facts under the rug

System Mechanic is the best PC cleaner with the tools you need to optimize and keep your machine running like new.

Let’s pull the rug back on CCleaner, shall we?

While CCleaner seems like a value, a closer look reveals how limiting the tool really is. Only System Mechanic from iolo fixes and improves all your home’s personal computers with one easy-to-use tool.
Frustrating License Limitations
More Features = More Clunky Downloads
Limited File Recovery

System Mechanic is the Safe Choice

Millions of customers in over 33 countries trust System Mechanic to deliver award-winning PC performance.

4.5+ Stars

8-Time Winner

PC Mag Editors' Choice

100M+ Protected

Comparing System Mechanic to CCleaner

System Mechanic®

CCleaner Pro

Automatic Maintenance

Repairs Registry Errors

Accelerates Boot Time

Real-time Optimization

Cleans Browser History

Removes Bloatware & Junk Files

System Defragger

Boosts Internet Speed

File Recovery

Total-home Protection

Why System Mechanic is the better choice

System Mechanic is the leading performance solution that automatically scans and optimizes your PC to keep it running like-new and clutter-free. Using iolo’s proprietary technology, System Mechanic precision-tunes dozens of internet, processor, memory, and hard drive settings in real-time for maximum system speed and performance. With System Mechanic, you get an all-in-one tool that is easy to use and effective.

System Mechanic by the numbers

System Boot Up Time
(Up to) 12% Increase
Web Browser Speed

(Up to) 10% Increase

Memory Optimization

(Up to) 7% Increase

Reduce Clutter & Bloat

(Up to) 8% Increase

*Increases based on independent performance tests provided by Passmark Software.


A PC Cleaner is an application that analyzes and performs various tasks to help improve your system’s performance.

No. Different PC cleaners bundle different tools and services together. System Mechanic is the only PC cleaner and system performance tool that bundles many value-adding features into one, simple-to-use tool.

While we guarantee System Mechanic to be safe for your PC, not all PC cleaners are equal. Before downloading anything on to your system, you should read reviews on both the product and brand.

While we are currently not offering a trial, we do stand behind our product with a 30-day money back guarantee.

Yes! iolo is proud to offer System Mechanic Ultimate Defense with all the must-have performance features from System Mechanic, PLUS privacy and protection features all in one, easy-to-use tool.

What is iolo's Whole Home License?

The Whole Home License® is iolo’s licensing policy that allows you to install and keep your software running on all of your compatible devices within the same home. Previously, users were allowed to install and license their iolo software simultaneously on a maximum of three PCs. Under the Whole Home License, a single activation key allows you to use your iolo software on all of your PCs, other than any PCs you use for business purposes. What you need to know about Whole Home Licensing

  • You, your spouse, and your relatives living within the same household may use the same license on any number of PCs that you own which are not used for business.
  • For full legal terms and conditions, see

To install your iolo product on additional PCs:

  1. On the additional computer, download the latest version of your iolo product. Choose from the list of downloads offered here.
  2. Follow the steps in the installation wizard, and enter the same Activation Key that you used to install on your original computer.

You can view the Activation Key on the original computer from within System Mechanic > red menu bar > key icon > Activation Key.