KB5063135: Phi Silica AI Update Boosts Windows 11 AI on AMD Systems

Here is a summary of the KB5063135: Phi Silica AI component update (version 1.2506.707.0) for AMD-powered systems:

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Overview​

• KB5063135 is an update for the Phi Silica AI component on Copilot+ PCs with AMD processors, running Windows 11 version 24H2.
• Phi Silica is a Transformer-based local language model, optimized for efficiency and performance using the NPU on Windows Copilot+ PCs.

Key Details​

Applies to:

• Windows 11 SE, 24H2
• Windows 11 Enterprise and Education, 24H2
• Windows 11 Enterprise Multi-Session, 24H2
• Windows 11 Home and Pro, 24H2
• Windows 11 IoT Enterprise, 24H2

Summary of Update:

• Includes improvements to the Phi Silica AI component for Windows 11 24H2.

How to Get the Update:

• Distributed automatically via Windows Update.
• Prerequisite: Latest cumulative update for Windows 11, version 24H2 must be installed first.
• This update replaces KB5061858.

How to Check Installation:

• Go to Settings > Windows Update > Update history.
• Look for "2025-06 Phi Silica version 1.2506.707.0 for AMD-powered systems (KB5063135)" in the update list.

References:

• For Microsoft’s standard terminology for software updates, see Microsoft documentation here.

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Note: This update is relevant only for Copilot+ PCs. It helps provide AI features locally and efficiently by leveraging NPUs, enhancing Windows 11 AI experiences for users on eligible AMD-powered systems.
Source: Microsoft KB5063135

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Source: Microsoft Support KB5063135: Phi Silica AI component update (version 1.2506.707.0) for AMD-powered systems - Microsoft Support