System Mechanic® Ultimate Defense

All-in-one online privacy, password manager, antivirus, and pc cleaner

Privacy Protection
Password Management
Malware Removal
Hard Drive Protection
File Recovery
Normally $79.95
Save $55.96
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One tool delivers best-in-class features like increased speed and resources, virus & malware defense, real-time online privacy protection, and more. System Mechanic® Ultimate Defense offers the best in PC performance, protection, and privacy.

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Active Performance

ActiveCare ensures peak PC performance by making system recommendations that help boost speed and optimize resources.
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Tailored Privacy

Stay safe online with configurable privacy settings that let you choose which companies can collect your personal data.
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AntiVirus Protection

Real-time protection keeps your PC clear of virus and malware threats without sacrificing PC performance.

Password Management

Peace of mind for wherever you browse. Secure all your passwords in one, easy-to-manage browser extension.

Get Back Lost Files

Get back accidentally deleted documents, music, photos, email, videos, system files, and even entire folders.

Delete Files Permanently

Securely wipe all drives with a utility that meets U.S Department of Defense standards before selling or donating your PC.

Keep your family protected

With Ultimate Defense for up to 10 devices.

One subscription covers all personal computers in your home. Network Scanner now identifies devices on your home network. Enjoy added peace of mind knowing System Mechanic Ultimate Defense is looking after you and your family.


Stop Hackers

Remove and block malware, viruses, and ransomware with real-time threat protection that is always on the defense.

Manage Passwords

Keeps your passwords, banking information and other personally identifiable information from falling into the wrong hands.

Boost PC Performance

Quickly cleans and optimizes your PC for faster startups, internet downloads, and a more stable system performance.

Online Privacy

Rest easy knowing your personal information is protected from falling into the wrong hands with easily configurable privacy settings.

You’re in Good Hands

Millions of people around the world have already made System Mechanic the place to fix their PC Problems. Read our Press Reviews.
PC Mag Editors' Choice
“System Mechanic is a slick suite of tune-up tools that can dramatically improve your PC’s performance.”
“System Mechanic is a quick, simple way to clear unwanted files from your PC and give it a noticeable performance boost.”
“System Mechanic is a simple way to give your PC a basic clean-up, and its detailed scans and scheduling options are a cut above many rival programs.”

Choose the System Mechanic product that’s right for you

We have a version of System Mechanic for everyone. Checkout what version is right for you.
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System Mechanic®

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System Mechanic Pro®
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System Mechanic® Ultimate Defense
System Mechanic Ultimate Defense Product Logo







System Shield Logo





Real-Time Protection

System Shield

Malware Killer





Custom Protection Tiers

Digital Fingerprinting Protection

Password Manager




ByePass License

Browser Extensions

24/7 Support




LiveTech 30 Day Trial

Normally $49.95
Save $34.96
Normally $69.95
Save $0.00

Normally $79.95

Save $55.96


Yes! You can take advantage of System Mechanic® Ultimate Defense risk-free for 30 days!

System Mechanic Ultimate Defense combines the performance features you enjoy with System Mechanic and adds Privacy protection, virus and malware protection, and password management.

Yes, with System Mechanic Ultimate Defense you get real-time virus and malware threat protection, as well as the ability to safely remove dangerous malware on already infected computers.

Yes, DriveScrubber permanently erases your hard drive data, exceeding Department of Defense security standards and ensuring that your private files will never be recovered.

Your digital fingerprint is made up of your online browsing habits, device and browser settings. All of this collected data allows advertisers to identify and target you with spam and hyper-specific ads.

While adblockers do block targeted ads, they do not stop tracking and personal data collection.

Our easy-to-understand product help documentation explains how to access each of System Mechanic Ultimate Defense’s tools, what they do, and why you should use them. Need more help? Reach us 24/7 by live chat on

Why System Mechanic® Ultimate Defense?

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For use on All your home PCs
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Free product support
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30 day money-back guarantee
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Windows® 11, 10, 8.1, 8, 7
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Frequently Asked Questions
Source: NPD intellect
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20+ years of PC performance innovation
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Over 80 Million PCs repaired
iolo Labs intelligent Tune-up Definitions™
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U.S. Pat. 7,873,877

Offer Details: Certain product features require ongoing updates from iolo. One year is included in the initial purchase. After this initial period expires, you must renew to continue to receive access to such features. You may enable automatic renewal during checkout and update your automatic renewal preferences by logging into your iolo Account. See Sales Policy for more details.

Speed Up Your Computer, Fast

Find out what’s slowing your computer down and how to fix it in minutes with our free software.

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.