A crash means the update service stopped unexpectedly. While Windows tries to restart it, repeated failures lead to update errors (e.g., 0x8024402c, 0x80070005), reboot loops, or stalled downloads.
Once the DISM scan reaches 100%, run the System File Checker: sfc /scannow Use code with caution.
If this happens on a or a managed corporate network ?
Detecting necessary updates for your specific hardware configuration. Downloading patch files securely to your local storage.
The legitimate wuauclt.exe file is always located in the C:\Windows\System32 directory. If you see this process running from any other folder, it is likely malware. Press to open the Task Manager .
Delete all files and folders inside the DataStore and Download folders.
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old ren C:\Windows\System32\catroot2 catroot2.old Restart the services by entering: net start wuauserv net start cryptSvc net start bits net start msiserver Close the Command Prompt and check if the crashes persist. Step 3: Run SFC and DISM Scans
Occasionally, a specific Microsoft update is known to cause crashes in system components. For example, updates released in early 2026 were linked to application unresponsiveness. Check Microsoft’s Windows Release Health dashboard to see if there is a known "Known Issue" for your current Windows build and if a "Known Issue Rollback" (KIR) has been issued.
Staging updates to install during system idle times or scheduled reboots.
The itself might be stuck, or dependent services (like BITS - Background Intelligent Transfer Service) might not be running correctly. 5. Malware Masking
The legitimate file reside in C:\Windows\System32 . If it opens in AppData , Temp , or any other folder, run a full system scan using a trusted antivirus or Windows Defender immediately. Step 5: Re-register Windows Update DLL Files
Windows includes a built-in tool specifically designed to fix update components. Open > Update & Security > Troubleshoot . Select Additional troubleshooters . Click on Windows Update and run the troubleshooter. Method 2: Reset Windows Update Components (Most Effective)
During the update detection phase, wuauclt.exe scans your local hardware IDs to match them against available online drivers. If an existing driver is profoundly unstable or has corrupted registry mappings, the hardware inventory scan will fail, bringing down the Windows Update client with it. Troubleshooting Steps to Fix wuauclt.exe Crashes
The folder C:\Windows\SoftwareDistribution stores temporary update files. If these files become corrupted, wuauclt.exe will fail when trying to read them.
Before troubleshooting, understand what you’re dealing with:
Navigate to C:\Windows\SoftwareDistribution and .
Windows includes a built-in diagnostic tool specifically designed to find and fix issues with the update client automatically. Press the to open Settings .