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The new AI features built into Copilot+ PCs and the security improvements in Windows 11

Windows 11 cambia tutto grazie a Copilot: ogni PC diventa un AI PC | SmartWorld

 

Copilot+ PCs and Windows 11 introduce a significant evolution in hardware-accelerated AI and system security.

AI Features in Copilot+ PCs

Copilot+ PCs require a Neural Processing Unit (NPU) rated at 40+ TOPS (Trillion Operations Per Second). This dedicated hardware runs complex machine learning models directly on the device rather than relying on cloud processing.

1. Contextual & Productivity AI

  • Recall: Automatically snapshots and indexes local activity. You can search for past documents, websites, emails, or images using natural language descriptions (e.g., "that chart about Q3 sales with the blue bar").

  • Click to Do: An interactive overlay that analyzes what is currently displayed on screen. It suggests immediate contextual actions, such as converting a table on screen directly into an Excel spreadsheet, running OCR on text, or summarizing visible content.

  • Improved Semantic Search: Upgrades File Explorer and Windows Search to understand concepts and visual descriptions rather than relying solely on exact file names or keyword matches.

2. Creative & Communication Tools

  • Cocreator & Restyle: Generates and refines artwork in real time in apps like Paint and Photos by combining hand-drawn sketches with text prompts.

  • Automatic Super Resolution (Auto SR): Uses the NPU to upscale lower-resolution graphics or old photos in real time without sacrificing performance.

  • Live Captions with Real-Time Translation: Translates audio from any video, meeting, or app across 40+ languages into English captions offline.

  • Windows Studio Effects: On-device camera and microphone enhancements including AI depth-of-field blur, artificial eye contact, automatic framing, and voice focus noise suppression.

Windows 11 Security Improvements

Microsoft's ongoing Secure Future Initiative (SFI) brings fundamental changes to privilege management, kernel safety, and credential protection.

1. Administrator Protection

  • Just-In-Time (JIT) Elevation: Replaces classic User Account Control (UAC) mechanics. Even on administrator accounts, processes run stripped of admin rights by default.

  • Isolated SMAA Profile: When elevation is required, Windows creates a temporary System Managed Administrator Account (SMAA) token that is discarded as soon as the task finishes.

  • Biometric Verification: Privileged actions strictly require explicit authentication via Windows Hello (facial or fingerprint recognition), stopping malware from silently elevating privileges in the background.

2. Kernel & Infrastructure Security

  • Rust Integration in the Kernel: Critical core components of the Windows kernel are being rewritten in Rust, eliminating entire classes of memory safety vulnerabilities (such as buffer overflows and use-after-free bugs).

  • VBS Enclaves for AI Data: Sensitive AI data, including Recall snapshots and semantic search indexes, are stored inside Virtualization-based Security (VBS) Enclaves. This hardware-isolated memory space prevents malicious scripts—even those running with system permissions—from accessing local AI logs.

3. Credential & Application Control

  • Passkeys via TPM & Windows Hello: Native support for passwordless FIDO2 passkeys tied to the local Trusted Platform Module (TPM), neutralizing phishing and credential-harvesting attacks.

  • Predictive Smart App Control: Employs cloud and AI reputation models to block unverified executables and potentially unwanted applications (PUAs) before they can run.

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