KB5064648 Phi Silica AI Update Enhances AI Performance on Qualcomm Windows 11 Devices

Here’s a summary of the KB5064648: Phi Silica AI component update (version 1.2507.793.0) for Qualcomm-powered systems based on the official Microsoft Support documentation:

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What is KB5064648?​

• KB5064648 is a component update for Phi Silica AI on Qualcomm-powered systems running Windows 11 (24H2 series).
• Phi Silica is a Transformer-based local language model, specifically optimized for efficiency and performance on Copilot+ PCs.
• It is Microsoft’s most powerful neural processing unit (NPU)-tuned local language model for Windows, enabling advanced AI features efficiently on-device.

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Key Details​

• Applies To: Windows 11 SE, Enterprise and Education, Enterprise Multi-Session, Home and Pro, IoT Enterprise (all version 24H2) — Copilot+ PCs only.
• What's Updated:
  Includes improvements to the Phi Silica AI component.
• Availability:
  This update is delivered automatically via Windows Update if eligible.
• Prerequisite:
  You must have the latest cumulative update for Windows 11, version 24H2 installed.
• Supersedes:
  Replaces the previous update KB5063225.
• How to Check If Installed:
  Go to Settings > Windows Update > Update history. Look for the entry:
  2025-07 Phi Silica version 1.2507.793.0 for Qualcomm-powered systems (KB5064648)

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References:​

• Official Microsoft Support Article

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In summary:
This update is designed to keep your on-device AI capabilities (through the Phi Silica model) running optimally on the latest Windows 11 Copilot+ ARM-based (Qualcomm) PCs, as part of Microsoft’s push for local, efficient AI processing.
If you need technical onboarding, update troubleshooting, or specifics about Copilot+/Phi Silica AI applications, let me know!

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Source: Microsoft Support KB5064648: Phi Silica AI component update (version 1.2507.793.0) for Qualcomm-powered systems - Microsoft Support