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How to Fix Windows Update Error 0x80070002 (File Not Found) on Windows

Getting error 0x80070002 when trying to install Windows updates? This FILE_NOT_FOUND error means update components are missing or corrupted. Full fix guide.

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Main Troubleshooting Guide

How to Fix Windows Update Errors

Complete symptoms, causes, and step-by-step solutions

Symptoms

You might be experiencing this problem if you notice:

  • Windows Update fails with error code 0x80070002
  • Update downloads successfully but fails during installation
  • "The system cannot find the file specified" in update logs
  • Multiple different updates all failing with the same error
  • Windows Update troubleshooter detects but can't fix the issue
  • CBS.log shows "file not found" entries for update packages

Common Causes

  • SoftwareDistribution folder contains corrupted download cache
  • Windows Update component store (WinSxS) has missing manifests
  • System date/time incorrect causing certificate validation failures
  • Third-party antivirus quarantined Windows Update files
  • Previous failed update left orphaned installation files
  • Damaged Windows Update Agent registration

Solutions

Solution 1: Clear Windows Update Cache

  1. 1Open Command Prompt as Administrator
  2. 2Stop update services: net stop wuauserv && net stop bits && net stop cryptsvc
  3. 3Rename the cache folder: ren C:\Windows\SoftwareDistribution SoftwareDistribution.bak
  4. 4Rename catroot2: ren C:\Windows\System32\catroot2 catroot2.bak
  5. 5Restart services: net start wuauserv && net start bits && net start cryptsvc
  6. 6Try Windows Update again — it will rebuild the cache from scratch

Solution 2: Run DISM and SFC to Repair Components

  1. 1Open Command Prompt as Administrator
  2. 2Run: DISM /Online /Cleanup-Image /RestoreHealth (wait 5-15 minutes)
  3. 3Then run: sfc /scannow (wait 5-10 minutes)
  4. 4If DISM reports it fixed errors, run Windows Update again
  5. 5If DISM fails, you may need a Windows ISO as source: DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\Sources\install.wim

Solution 3: Re-register Windows Update Components

  1. 1Open Command Prompt as Administrator
  2. 2Run these commands one at a time:
  3. 3regsvr32 wuaueng.dll
  4. 4regsvr32 wuaueng1.dll
  5. 5regsvr32 wucltui.dll
  6. 6regsvr32 wups.dll
  7. 7regsvr32 wups2.dll
  8. 8Restart your PC and try Windows Update
FIXES THIS IN 5 MINUTES

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