Microsoft Edge appears to be preloading around 2GB of AI-related files for its Copilot features on Windows PCs, even if users have not actively used the assistant.

The files can be found through Windows’ installed applications or browser-related components. Users can check the Control Panel to view Microsoft Edge’s storage usage, which may appear unusually high even if the browser is rarely used.

The move mirrors Google’s earlier rollout in Chrome, which also downloaded several gigabytes of on-device AI models to compatible devices. Google said those files enable features such as AI writing assistance, translation, tab organization and security tools to run locally instead of relying entirely on cloud processing.

Microsoft has been steadily expanding Copilot across Windows and Edge, introducing AI-powered writing, search and browsing features. Preloading AI components allows the company to activate new capabilities through updates without requiring users to download large files later.

However, the practice has raised concerns among some users, particularly those with limited SSD storage or metered internet connections, who argue that such large downloads should be optional and clearly disclosed before installation.

As browser makers continue integrating generative AI into their products, pre-installing AI models is becoming increasingly common, although it remains a point of frustration for users who prefer greater control over storage usage.