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WU_E_PT_FILE_LOCATIONS_CHANGED
WU_E_PT_FILE_LOCATIONS_CHANGED means the client learned that file locations changed while the operation was in progress. Windows Update must refresh its internal state and resend the request rather than continue with stale locations.
What to check
- Look for redirects, content-location changes, or cache refresh messages immediately before this code.
- If the issue repeats, check whether a proxy or content-distribution layer serves inconsistent location data.
- For WSUS, verify synchronization and content storage health before attempting client-side cache changes.
Microsoft: WSUS messages and troubleshooting tips
Microsoft: Windows Update log files
Microsoft: Windows Update error reference
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