Windows Recall is a feature from Microsoft that has faced criticism for being a potential security hazard and a public relations misstep. It was introduced with the 24H2 release, which included advanced AI functionalities. The feature relies on a neural processing unit (NPU) that operates independently of the cloud to emphasize privacy and security. In April 2025, Windows Recall became widely available for Copilot+ PCs, with security measures like isolating it within a "VBS Enclave" to protect sensitive data. However, skepticism remains, leading platforms like Signal and Brave to implement their own protective measures against Windows Recall. Signal has introduced a feature to prevent Windows Recall from capturing snapshots of its app, while Brave blocks Windows Recall by default for all its browser windows. AdGuard has also released an update to enhance user privacy by allowing users to disable Windows Recall on Copilot+ PCs, expressing doubts about the effectiveness of Microsoft's security measures.