KB5077241 Update Not Installing Error Code 0x800f0831/0x800f0991/0x80073712 Windows 11 FIX
Error 0x800F0831 typically indicates:CBS_E_STORE_CORRUPTION or missing prerequisite update.
In simple terms, Windows Update is trying to install KB5077241, but one or more required system packages are missing, corrupted, or not properly registered.
https://www.catalog.update.microsoft.com/Home.aspx
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Common Causes of KB5077241 Error 0x800F0831
1. Missing Required Servicing Stack Update (SSU) (Primary Cause)
This is the most common reason.
Cumulative updates like KB5077241 require a specific Servicing Stack Update.
If the SSU is:
-Missing
-Outdated
-Partially installed
Windows cannot proceed.
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2. Missing Prerequisite Cumulative Updates
If earlier updates were:
-Skipped
-Failed
-Not fully installed
KB5077241 may not find required dependencies and will fail.
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3. Corrupted WinSxS Component Store
The WinSxS folder contains the system components and update manifests required for installation.
If it has:
-Missing .mum or .cat files
-Corrupted package metadata
-Inconsistent component references
Windows cannot assemble the update.
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00:00 Intro
00:23 Solution #1
01:09 Solution #2
01:49 Solution #3
02:59 Solution #4
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