Avast Cleanup is an optimization app available through Avast One. It is available as both a free and paid app. This article explains how to install the free version Avast Cleanup in Avast One, then optionally upgrade to the paid version. For information about installing Avast One, refer to the following article: Installing Avast One.

Install Avast Cleanup Free

1. Open Avast One, hover your mouse over the side menu, and select Cleanup ▸ Scan for junk.
2. Wait for the scan to finish, then click Resolve all.
3. Click Continue with free.
4. Click I want Avast Cleanup Free.

Avast Cleanup Free is now installed.

Upgrade to the paid version

If you have purchased a paid version of Avast Cleanup on our website, you need to manually activate the app. For instructions, refer to the following article: Installing and Activating Avast One apps.

Alternatively, you can subscribe to the paid version of Avast Cleanup by clicking Go Premium in the top-right corner of the application screen. Follow the on-screen instructions to complete the transaction. Avast Cleanup activates automatically after you complete the purchase.

Troubleshoot installation issues

If you experience any installation issues:

1. Ensure your Windows device meets the minimum system requirements and your Windows is up to date. For information about the requirements for your device, refer to the following article:
   • System requirements for Avast applications
2. Restart your Windows device, and try again to install Avast Cleanup Free by following the instructions in this article.

Further recommendations

• To learn more about the Avast Cleanup app in Avast One, refer to the following articles:
  • New Avast One - FAQs
  • Avast One Cleanup - Getting Started

Updated on: 19/09/2025