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NS_S_REBOOT_RECOMMENDED
Windows Media installation recommends a restart
NS_S_REBOOT_RECOMMENDED is HRESULT 862968 (0x000D2AF8) from Windows Media. The documented description is “Installation was successful; however, some file cleanup is not complete; For best results, restart your computer.” In the Windows Media Player, Windows Media Format, DRM, or Media Foundation state machine, the value reports a nonfailure state that must not be collapsed into plain S_OK.
Telemetry and tests should retain this result because its operational meaning differs from S_OK.
Where the status is encountered
- Windows Media Format source, writer, DRM, publishing-point, or installation operations;
- Media Foundation topology activation and remote-component setup;
What must be true before accepting it
Verify that the installed functionality is usable now and the remaining cleanup does not invalidate current files or running processes. The caller should reject a path where outputs and state do not match the recorded condition.
Difference from nearby results
NS_S_REBOOT_REQUIRED blocks continuation until restart; this status permits continuation but recommends cleanup through reboot.
Using one generic success branch for this status and its neighbor can lose output, repeat work, or misreport completion.
Correct handling and recovery
Report successful installation with a recommended restart, schedule it at a convenient time, and avoid claiming the machine is fully cleaned until after reboot.
A new attempt following it should be triggered by a meaningful transition, not merely by elapsed time.
Practical scenario
A codec update succeeds while old files remain in use. Setup finishes, marks restart recommended, and verifies current playback before deferring reboot.
References
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