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Since wuauclt.exe crashes often trace back to disk corruption (bad sectors in the database folder), the "best" long-term solution is monitoring S.M.A.R.T. attributes. Use PowerShell: Why Does Wuauclt.exe Crash BEST
For the best forensic insight, enable Windows Update logging. A "crash" without logs is a guess. Enable verbose logging via: We’ve ranked these from to more advanced