What does HRESULT 0xC00D0FCE (NS_E_MEDIA_LIBRARY_FAILED) mean?

Status / error code:

Category:

Constant name:

Source:

Facility:

Operating System:

Description:

Windows Media Player cannot create the library. You must be logged on as an administrator or a member of the Administrators group to install the Player. For more information, contact your system administrator.%0

Previous	Next
NS_E_FILE_FAILED_CHECKS	NS_E_SHARING_VIOLATION

NS_E_MEDIA_LIBRARY_FAILED

What failed

NS_E_MEDIA_LIBRARY_FAILED (0xC00D0FCE) means Windows Media Player could not create or initialize the media library. The original Windows Media message specifically points to installation/initialization context and administrator membership, so distinguish a first-run or installation failure from a later failure to add one media item.

Capture the first library failure

Evidence	Why it matters
User SID and profile path	Identifies which per-user library state the Player is trying to open or create.
Installation/elevation context	Shows whether the failure occurs while installing or registering the Player rather than during normal library use.
Library/database path and access result	Separates path, ACL and profile problems from media-file problems.
First lower-level HRESULT or Win32 error	Preserves the actual file/database/registration failure before WMP reports `NS_E_MEDIA_LIBRARY_FAILED`.
Operation that triggered initialization	Distinguishes startup, first-run creation, scan, search and an explicit MediaCollection operation.

Focused tests

Reproduce with the same user and record the first failed file, registry or library operation before retry changes the state.
If the failure occurs during installation, compare an elevated supported installation with the same package; do not use elevation as a permanent workaround for normal playback.
If installation succeeds but one profile fails, compare a fresh supported user profile. That isolates per-user library state from machine-wide registration.
If the library opens but adding one item fails, test that item directly and diagnose the narrower add/metadata/path HRESULT instead of treating the database as corrupt.

Nearby results

Result	Different boundary
`NS_E_MPDB_GENERIC`	A media-database operation failed without a narrower library result.
`NS_E_WMP_ADDTOLIBRARY_FAILED`	The failure occurs while adding or committing a specific item to the library.
`NS_E_WMP_HME_STALEREQUEST`	A Home Media Experience request belongs to an obsolete library/navigation generation.

Verification

Use the same account to restart the Player, open the library, enumerate existing items and add one known-good local item. A real fix survives a fresh Player process and does not require broad database deletion or administrator rights for routine library access.

Technical references

Looking for a different code? Search another status or error code.