The tech giant's Copilot + Recall feature is available now in preview mode for some people who have Microsoft's AI PCs and laptops, and the purpose behind the feature is to allow PC users to easily search through past activity they have looked up previously, such as files, photos, emails and browsing history.

The idea is that people won't lose what they have searched for before and wanted to save.

It has been trialed with a small number of users, but it has now started to expand to those who signed up to Microsoft's Windows Insider software testing programme.

Microsoft have said the feature will be rolled out worldwide, but users in the EU will have to wait until later in the year.

When it was first announced last year, the feature was named a "privacy nightmare" and has been relaunched this year.

Privacy campaigner Dr Kris Shrishak said the feature is "an improvement" from when it was announced last year, but still has concerns about how it will be used.

He told the BBC: "Information about other people, who cannot consent, will be captured and processed through Recall."