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Iolo currently uses sticky.io (formerly LimeLight) and PayPro Global, to securely process transactions on behalf of iolo.

  • You may notice your subscription will appear on your banking statement as “IOLO.com“, “RealDefense LLC“, “PAYPRO*IOLO“, or “PAYPAL *IOLO COM” for US customers and depending on regional location, PAYPROSOFTWARE, PAYPRO, PAYPROEUROPE or Paypro for international customers.
  • Email receipts will come from support@mail.iolo.com or sales@payproglobal.com
  • If you use PayPal, the merchant will appear as “RealDefense LLC“, “PAYPRO*IOLO“, or “PAYPAL *IOLO COM

Iolo takes your privacy and payment security seriously, and it is our top priority. We thank you for your continued business!

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Knowledge Base

System Mechanic

System Mechanic Minimum System Requirements

Introducing System Mechanic® Ultimate Defense™

How to Install and Activate System Mechanic

See all 29 articles

Why has System Shield blocked a virus that I cannot find in the Threat Database?

Malware Killer

How Do I Install and Activate Malware Killer?

Malware Killer Frequently Asked Questions

Disabling promotional messages in Malware Killer


Getting Started with ByePass Android

Install ByePass in Microsoft Edge Chromium

ByePass Will Not Let Me Add More Than 5 Accounts

ByePass Frequently Asked Questions

Adding Secure Credit Cards and Notes to ByePass

See all 18 articles

Product Activation

How do I activate my System Mechanic product with an Activation Key?

I receive an Error 2: Activation Key Not Recognized when trying to activate


How To Create a Bootable USB

Does DriveScrubber wipe free space?

Privacy Guardian

How To Disable Or Enable Browser Saved Passwords From Being Removed?

How to prevent clearing of data from trusted websites?

Privacy Guardian Frequently Asked Questions

How To Install Privacy Guardian Standalone Product?

How To Upgrade Privacy Guardian Freemium Standalone to the Full Version?

See all 8 articles

Installation and Uninstall

How Do I Uninstall My iolo Product?

How Do I Uninstall SCU (System Checkup)

My iolo Product Has a Problem Installing or Will Not Start Once Installed

Product will not update properly or launch after installation

How to create a Windows system snapshot for troubleshooting purposes

See all 6 articles


How to disable automatically checking for updates in System Mechanic

How To Check Your .NET Version in Windows

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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 https://www.iolo.com/company/legal/eula/

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.