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NS_E_REBOOT_RECOMMENDED
The practical meaning of this HRESULT
NS_E_REBOOT_RECOMMENDED means Windows Media setup failed and left cleanup or replacement work that is likely to complete after a restart.
The result comes from the legacy Windows Media installer finalization stage. A representative case is setup installs most files but cannot replace or remove a component still loaded by another process.
Evidence to preserve
setup log, failed component, pending rename or delete operations, files in use, restart state, and installed version after setup exits.
A narrow diagnostic run
- Record and verify: setup log, failed component, pending rename or delete operations, files in use, restart state, and installed version after setup exits.
- Run the controlled comparison: restart once, then inspect component versions and rerun setup before applying other changes.
Distinguish the neighboring failures
| HRESULT | Meaning in the standard description |
|---|---|
NS_E_REBOOT_REQUIRED | Installation was not successful; To continue, you must restart your computer. |
NS_E_SETUP_INCOMPLETE | Installation was not successful. |
NS_E_SETUP_IGNORABLE_FAILURE | Some skin or playlist components cannot be installed. |
Here, reboot-required blocks continuation, while it says restart is recommended for cleanup and consistency.
Finish with a repeatable fix
For this occurrence, complete the restart and verify cleanup; if the error recurs, diagnose the specific setup log entry.
Authoritative references
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