Windows Error 0x80073CF3 — Microsoft Store App Update Failures

Fix Microsoft Store error 0x80073CF3 when apps fail to install, update, or launch, including Store cache reset and app re-registration solutions. 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: Error 0x80073CF3 indicates a package deployment failure in the Microsoft Store. The error can affect app installations, updates, and sometimes app launches. Corrupted Microsoft Store cache or app registration data is the most common cause. The Windows Store Install Service must be running for installations to work. This error sometimes occurs after major Windows feature updates. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Corrupted Microsoft Store app cache. App package registration corrupted in the Windows package database. Insufficient disk space on the system drive for app installation. Windows Store Install Service not running. Date/time settings incorrect, causing certificate validation failures. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Reset Microsoft Store cache: Win+R > wsreset.exe > wait for Store to open. Clear Store cache manually: delete contents of %LOCALAPPDATA%\Packages\Microsoft.WindowsStore_8wekyb3d8bbwe\LocalCache. Re-register all Store apps: Get-AppxPackage -allusers | foreach {Add-AppxPackage -register "$($_.InstallLocation)\appxmanifest.xml" -DisableDevelopmentMode} in PowerShell (Admin). Check date/time settings are correct and time zone is accurate. Run the Windows Store Apps troubleshooter: Settings > Troubleshoot > Other troubleshooters. Verify disk space: ensure at least 10GB free on C: drive. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

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