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Aaron Czechowski
2022-05-03 17:26:06 -07:00
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windows/deployment/update/how-windows-update-works.md
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@ -92,13 +92,16 @@ When users start scanning in Windows Update through the Settings panel, the foll
![Windows Update scan log 1.](images/update-scan-log-1.png)
#### Proxy Behavior
For Windows Update (WU) scans URLs which 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 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).
For WU URLs which are NOT used for update detection (download, reporting etc):
> [!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 certain proxy, service, or authentication error code, then the system 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