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NS_E_SETUP_BLOCKED
Read this as a state transition
NS_E_SETUP_BLOCKED means Windows Media setup has found an unmet requirement or compatibility rule and refuses installation.
The result comes from the setup prerequisite or compatibility scan before changes are committed. A representative case is the package targets a different OS architecture or an incompatible Windows Media component is already installed.
Record before the object changes
| Observation | What to capture |
|---|---|
| Primary discriminator | blocking rule, OS version and edition, architecture, installed component version, policy, disk space, and compatibility log |
| Owning object | the setup prerequisite or compatibility scan before changes are committed, including its object identity and generation |
| Timeline marker | the call immediately before Windows Media setup has found an unmet requirement or compatibility rule and refuses installation and the completion event, callback, or state change that followed |
| Comparison artifact | one known-good run that changes only this condition: run the prerequisite or compatibility scan alone and confirm the same blocking condition without modifying the system |
Windows Media setup has found an unmet requirement or compatibility rule and refuses installation. Preserve the original setup prerequisite or compatibility scan before changes are committed and the first result in the chain: a later UI message can replace this precise code with a generic playback, setup, network, or device failure.
Test one hypothesis at a time
- Record this result,
0xC00D2B00, the returning method, process architecture, Windows build, and component version. - Capture blocking rule, OS version and edition, architecture, installed component version, policy, disk space, and compatibility log before retry logic changes the object.
- Perform this narrow comparison: run the prerequisite or compatibility scan alone and confirm the same blocking condition without modifying the system.
What the result does not prove
In this case, setup-incomplete occurs after setup begins and fails, while it stops at the eligibility gate.
Do not merge these HRESULTs
| Result | Different condition |
|---|---|
NS_E_SETUP_IGNORABLE_FAILURE | Some skin or playlist components cannot be installed. |
NS_E_SETUP_INCOMPLETE | Installation was not successful. |
NS_E_REBOOT_REQUIRED | Installation was not successful; To continue, you must restart your computer. |
Confirm the correction
The supported corrective direction is to satisfy the documented requirement or use a compatible package; bypassing the block can leave unsupported binaries.
For an incident, keep the symbolic constant together with 0xC00D2B00.
Technical references
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