Here is a summary of the information from the Microsoft Support page for KB5064649: Phi Silica AI component update (version 1.2507.793.0) for Intel-powered systems:
For more details, see the official Microsoft page:
KB5064649 Microsoft Support
Source: Microsoft Support KB5064649: Phi Silica AI component update (version 1.2507.793.0) for Intel-powered systems - Microsoft Support
What is Phi Silica?
- The Phi Silica AI component is a Transformer-based local language model.
- It is Microsoft's most powerful NPU-tuned local language model, specifically optimized for Copilot+ PCs for both efficiency and performance.
- Phi Silica offers many of the capabilities found in larger language models (LLMs), but is designed to run efficiently on Windows devices with neural processing units.
What does this update include?
- Improvements to the Phi Silica AI component for Windows 11, version 24H2.
Who is this update for?
- Applies only to Copilot+ PCs (specifically Intel-powered systems).
- Applies to:
- Windows 11 SE, version 24H2
- Windows 11 Enterprise and Education, version 24H2
- Windows 11 Enterprise Multi-Session, version 24H2
- Windows 11 Home and Pro, version 24H2
- Windows 11 IoT Enterprise, version 24H2
How to get the update
- The update is delivered automatically through Windows Update.
- Prerequisite: You must have the latest cumulative update for Windows 11, version 24H2 installed.
After installation
- Confirm installation by checking:
Settings → Windows Update → Update history. - The update should appear as:
2025-07 Phi Silica version 1.2507.793.0 for Intel-powered systems (KB5064649)
Other notes
- This update replaces the previously released update KB5063134.
For more details, see the official Microsoft page:
KB5064649 Microsoft Support
Source: Microsoft Support KB5064649: Phi Silica AI component update (version 1.2507.793.0) for Intel-powered systems - Microsoft Support
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