The official DuckDuckGo browser for Windows and does not officially support Windows 8.1. Additionally, there is no official portable version of the DuckDuckGo browser provided by the developer. Compatibility and Workarounds
Here is how to set up a privacy-focused, portable browsing experience that defaults to DuckDuckGo: duckduckgo browser download for windows 81 portable
Inside the DuckDuckGo extension settings, turn on "Block embedded social media content" and "Block all cookies by default (except essential ones)." requires Windows 10 (May 2020 version) or later
:Download a portable version of a compatible browser like Firefox Portable or Brave Portable. Once launched, install the DuckDuckGo Privacy Essentials extension . This gives you the tracker blocking and private search features of the full browser in a portable format. Download Firefox Portable: Power User Tweak: Inside the
If you are looking for a portable version or a way to use DuckDuckGo on an older system, here are the available options and why the official browser won't work on your current OS: Why the Official Browser is Not Supported
: Set DuckDuckGo as your default search engine in your current browser's settings.