Windows Update Error 0x800F0954 — Feature Install Failed

Windows Update error 0x800F0954 occurs when trying to install optional features like .NET Framework or RSAT tools. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: CBS_E_MISSING_PACKAGE — feature package not found. Common when installing optional Windows features. WSUS or Group Policy blocking Windows Update as source. Affects .NET Framework 3.5 and RSAT tools. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: WSUS server not providing optional feature packages. Group Policy blocking direct Windows Update access. Windows installation source files missing. Corporate network restrictions. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Run: DISM /Online /Add-Capability /CapabilityName:name /Source:WindowsUpdate. Edit Group Policy: allow Windows Update for feature installation. Download features from Microsoft directly. Use Windows ISO as alternative source. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Windows Error Codes collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.