System Mechanic Ultimate Defense

There are a vast number of security and performance vulnerabilities in modern computing, such as methods for stealing your data, hacking your PC or bogging you down in bloatware, spam and pop-up ads, all which grow more and more sophisticated. These make a computer maintenance and security suite designed for Windows users, like System Mechanic Ultimate Defense, a necessity.

To this end System Mechanic Ultimate Defense has been built on the PC performance foundation of System Mechanic, adding the real-time AV and data protection features of System Mechanic Pro, plus securing your web browsers, while managing passwords and credit cards, removing malware on demand. System Mechanic Ultimate Defense is sold as the total package to speed up, secure and simplify your digital life.

System Mechanic Ultimate Defense


You can download System Mechanic Ultimate Defense here. This page contains full details of how to install, setup and use System Mechanic Ultimate Defense. For further information go to How Do I Install and Activate System Mechanic Ultimate Defense.

We found the installation process straight forward and simple. During the process you will be asked to submit an email address, but you can be assured that this will only be used to send you an activation code. Iolo will never share you’re information with third parties.


System Mechanic


The first time you launch System Mechanic, an analysis begins. No changes will be made to your system as a result of this analysis. This screen also gives the opportunity of a deep scan. The results page gives the option to drill down and decide exactly which files to remove. Or to ‘Repair all’ to fix all the identified issues with a single click.

On what we considered to be a well looked after PC, 431 issues where found in the form of “Windows Junk Files”.

On the Deep Scan which takes a little longer, but finds deeply hidden issues, 97 registry issues were found and repaired. We took this opportunity to defrag the hard drive as recommended.

System Mechanic

On this screen there is also an opportunity to observe your “PC Status”, examining ‘Hard Drive Space’, ‘System Memory’, and ‘Start Up Programs’. Lastly, there is a “History” function, which includes a “SafetyNet” to allow the reverse of Registry changes made.

We found being able to view “Start Up Programs” and “Running Programs”, particularly useful, as they are categorised. Two of the categories being: ‘Unknown’, and ‘Dangerous’.

System Mechanic also makes recommendations as can be seen from the screenshot above, in the form of ‘Windows security items’.

The recommendations given to us we found to be useful for the more experienced user. For example, we were able to add missing registry entries and change another on the sound security advice given here. The only issue found was the recommendation given that the PC was “vulnerable to SYN attacks”. On separate test we considered this not to be the case, but on the other hand we welcomed the reminder to look at this vulnerability.

We find the ‘System Mechanic’ tool to be one of the best Windows optimisation tools on the market.


Fully Integrated Product Dashboard

The System Mechanic Ultimate Defense user interface allows you to access System Mechanic, System Shield, DriveScrubber, Search and Recover, Privacy Guardian, and Malware Killer from right within the main product panel. Simply click on the appropriate product icon at the top of the panel to call up that product’s tab. You can also see certain information about the status of your ByePass account. Since ByePass is a web browser extension, its main UI remains browser-based.


Privacy Guardian

As a part of System Mechanic Ultimate Defense, Privacy Guardian helps ensure anonymous browsing, and keeps search history private. Thwarting invasive monitoring of your browsing habits. While giving you the ability to “Automate cookie clearance” and to clear other web-browsing traces stored on your computer. Privacy Guardian also easily disables several aggressive Windows 10 data-collection settings. While importantly enhancing identity theft protection.

Privacy Guardian

A tutorial is supplied to guide you through the manual steps to improve your privacy grade. Options include “ Digital Fingerprint Protection” to protect your browsers from malicious actors attempting to spy on your online habits. Privacy Shield lets you disable ‘Windows Data Sharing’ settings that enable Microsoft to collect detailed personal information about your computer use in one convenient wizard, using the “Turn off all (recommended)” button. A restore original settings feature is also available.

Privacy Shield

Other features are “Active Care”: to allow you to create a whitelist of websites you visit and trust, to avoid the removal of their cookies. “Private Search”: to browse the web anonymously and keep your private searches truly private. “History”: which lists all the website privacy items that have been removed from your computer.


ByePass simplifies your digital life while securing it. ByePass is a platform-agnostic, secure password manager. Password security software that also helps protect your online purchases.

ByePass password manager encrypts locally your saved credit card information, login credentials and other sensitive data to prevent malware from stealing it. ByePass stops password-stealing Trojan attacks on your browsers.


ByePass prevents this by securing passwords with military-grade encryption. You can stop thinking up, remembering and typing passwords with ByePass secure password and credit card management. ByePass will also ensure the adequacy of your passwords, and check for any leaked passwords. Also allowing you to remotely log out from websites you accessed from various locations.

Malware Killer

Malware Killer is System Mechanic Ultimate Defense’s solution for on-demand malware and spyware removal. Malware Killer identifies and eliminates threats that have managed to get into your computer system. Malware Killer uses proprietary Scan Cloud based scanning and analysis, enabled by its own carefully developed heuristics algorithm to dramatically reduce detection time for brand new outbreaks. This method allows Malware Killer to continually add to a vast “reputation database,” and even detect previously unknown threats.

Malware killer

When Malware Killer finds a threat, it sends it to the Scan Cloud Sandbox where they are analysed, upon which the malware detection engine is immediately made more powerful. Malware Killer then shares this increased detectability with all of its users, even on machines where the Scan Cloud functionality is turned of.

Items can also be quarantined in a safe location, to await further action. Files can also be excluded from Malware processing by using the Exclusions option.

System Shield

System Shield is a real-time anti-malware (anti-virus) solution that deploys both reactive and proactive malware detection strategies, therefore offering real-time protection, blocking malware. The System Shield reactive strategy detects viruses using published malware signature detection. While the proactive strategy uses sophisticated behaviour-monitoring techniques to determine whether a file intends to harm your computer, enabling attacks to be stopped before a security patch for a particular threat is released. System Shield can protect your PC against viruses, Trojans, rootkits and various kinds of malware and spyware.

System Shield

A set of very useful Cleaning tools is also offered in the form of: ‘All-in-One PC Cleanup’; ‘Internet Cleanup’; ‘Windows Cleanup’; and ‘Registry Cleanup’. Plus an ‘Advanced Uninstall option’.

The “ActiveCare” element can automatically analyse and repair issues, even when you are away from the computer.

Search and Recover

Search and Recover can help to find deleted files and restore them easily. Iolo states that, Search and Recover deploys powerful technology to retrieve items many other file recovery products miss. Thereby, rescuing critical work and perhaps cherished memories in the form of photographs or videos you thought were lost for good.

Search and Recover

Search and Recover can help you recover emails from popular email clients.  Recovering files from many types of devices, including: cameras, memory cards, and USB sticks, and certain damaged devices. An easy-to-use step by step wizard is supplied to make recovery fast and convenient.


Even after you’ve deleted them or reformatted a drive, identity thieves can still access: Photos, Bank statements, Emails, Credit card numbers and more. Therefore, System Mechanic Ultimate Defense also includes a drive deletion tool, which can permanently wipe all data from a drive without any possibility to recover it. This is needed for example, if you ever need to destroy a whole drive of data, or before selling or recycling a computer.


DriveScrubber was built to satisfy the strict protocols of mission-critical government and military entities.


In the main the System Mechanic Ultimate Defense interface is easy to use and navigate and highly customisable. Although, it may seem a little more daunting for a beginner, as not all tools have one click fixes. But for those less confident, System Mechanic will perform clean up’s automatically, only removing files that won’t effect your normal daily PC usage.

System Mechanic Ultimate Defense is a premium computer maintenance and security software suite that includes seven highly useful and effective tools in one.  It should be seen as a fully fledged security suite for protecting you from online threats. On use we have found it to be useful and trustworthy, and it will clean your computer effectively.  

We are pleased to be associated with Iolo System Mechanic Ultimate Defense and recommend it as we believe it gives the best PC maintenance and security options currently available.


System Mechanic Ultimate Defense RRP cost is £61.80 per year excluding VAT. This gives access to all features. Not many tools can provide such a set of features in one product, which save the user time and money, at which we consider a very competitive and fair price. If you don’t like the product, you can also change your mind and get a full refund within 30 days.


Get 50% off iolo’s System Mechanic® Ultimate Defense™; Total Performance, Protection & Privacy In One Convenient Interface.


Performance Benchmarking

Figures for System Mechanic Performance Benchmarking given by Iolo as of 12th October 2020:

Startup – 89% faster
Internet – 39% faster downloads
CPU – 17% improved
Graphics – 8.6% improved
Drive – 18% improved

Get 50% off iolo's System Mechanic® Ultimate Defense™; Total Performance, Protection & Privacy In One Convenient Interface