The keyword here is Standard data recovery software requires installation—it writes files to your registry and system drive. This is problematic because:
The "Ultimate" designation signifies its ability to handle complex recovery scenarios, such as: reclaime file recovery ultimate build 1717 portable
(often referred to as similar tools like Recuva or Reclaim in search queries) typically refers to a powerful utility designed to retrieve lost, deleted, or formatted files from various storage media. The keyword here is Standard data recovery software