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WU_E_PT_NWS_NOT_LOADED
WU_E_PT_NWS_NOT_LOADED indicates that a required runtime used by the Windows Update protocol layer was unavailable. The useful root cause is normally in earlier initialization or servicing log entries.
How to investigate
- Generate a readable Windows Update log and find the first initialization failure before this HRESULT.
- Check whether the system has pending servicing work or a damaged Windows component store before changing WSUS or proxy settings.
- Compare the client servicing level with a working device of the same Windows release.
Microsoft: Get-WindowsUpdateLog
Microsoft: Windows Update error reference
Microsoft: Troubleshoot Windows Update issues
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