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Merge pull request #10482 from itsrlyAria/patch-7

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Update how-windows-update-works.md
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Aaron Czechowski
2022-05-03 17:32:03 -07:00
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parent 303ab502b9 445db26117
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windows/deployment/update/how-windows-update-works.md
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@ -90,6 +90,18 @@ When users start scanning in Windows Update through the Settings panel, the foll
- Windows Update uses the thread ID filtering to concentrate on one particular task.
![Windows Update scan log 1.](images/update-scan-log-1.png)
#### Proxy Behavior
For Windows Update (WU) scans URLs that are used for update detection ([MS-WUSP]: SimpleAuth Web Service | Microsoft Docs, [MS-WUSP]: Client Web Service | Microsoft Docs):
- System proxy is attempted (set using the `netsh` command).
- If WUA fails to reach the service due to a certain proxy, service, or authentication error code, then user proxy is attempted (generally it is the logged-in user).
> [!Note]
> For intranet WSUS update service URLs, we provide an option via Windows Update policy to select the proxy behavior.
For WU URLs that _aren't_ used for update detection, such as for download or reporting:
- User proxy is attempted.
- If WUA fails to reach the service due to a certain proxy, service, or authentication error code, then the system proxy is attempted.
#### Identifies service IDs