Update UX Logs
Windows stores Update UX telemetry and diagnostic logs under RUXIM in ProgramData to track update orchestration, restart coordination, notification flows, and troubleshooting data for the Windows Update user experience. These files typically include ETL trace logs, text diagnostics, transient reporting data, and other update UX logging artifacts that accumulate across feature updates and failed install attempts. Kudu removes those stale Update UX log files to recover disk space and clear out old diagnostic traces without affecting installed updates, user files, accounts, or settings.
Why clean Update UX Logs?
- Repeated failed cumulative or feature update attempts leave behind multiple generations of RUXIM ETL traces, and the visible symptom is ProgramData using more space after every retry even though no new apps or files were added
- Old Update UX diagnostic logs make it harder to isolate a current Windows Update problem because new failures are buried in historical noise, so troubleshooting often starts with oversized log folders full of outdated traces
- Aborted upgrade and rollback sequences can leave stale restart and notification telemetry in RUXIM, which shows up as log growth continuing long after the update itself has already completed or failed
- On systems with small SSDs, accumulated Update UX logs consume recoverable space in a protected system location, and users typically notice low-disk-space warnings without an obvious personal file to delete
- Enterprise or frequently serviced machines generate more update orchestration traces over time, leading to large RUXIM folders that administrators discover during storage audits or when imaging and maintenance windows take longer
- Cleaning RUXIM removes obsolete ETL and diagnostic artifacts from previous update sessions, which reduces clutter when collecting fresh logs for a new Windows Update issue and avoids mixing old and current evidence
Cache paths Kudu targets
Windows
%ProgramData%/Microsoft/Windows/RUXIM |
Common questions about Update UX Logs
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Available on Windows, macOS, and Linux. No account required, no feature gates, no telemetry without consent. All cleaning targets are open source and community-auditable.