Windows error 4335 (ERROR_CANT_DELETE_LAST

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: RSM refuses to remove the final item required by a group or configuration.

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ERROR_UNEXPECTED_OMID	ERROR_MESSAGE_EXCEEDS_MAX_SIZE

ERROR_CANT_DELETE_LAST_ITEM

The last remaining object in this RSM grouping is protected

Some RSM relationships must retain at least one member or supporting object. Removing the final item could leave a library, pool hierarchy or resource configuration without a valid representative. The code should be interpreted with the delete API and object type; it is a structural guard rather than a claim that the object is busy.

Enumerate the parent container and identify the invariant that would be broken. Add or migrate to a replacement object before deleting the old one, or remove the higher-level configuration in the supported order. Avoid direct database edits, which bypass the dependency checks and can leave media or device objects orphaned.

What to inspect

Identify the parent group and all remaining members.
Create or move to a replacement before deletion.
Delete dependent configuration in documented order.

References

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