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VDS_E_VOLUME_HIDDEN
VDS_E_VOLUME_HIDDEN means the operation attempts to expose a volume whose VDS_VF_HIDDEN state prevents access-path assignment. Hidden state can be volume-, partition- or disk-scoped depending on basic/dynamic and MBR/GPT layout.
Determine why the volume is hidden before changing it
- Read current volume flags and disk partition style.
- Check whether hidden status is intentional for recovery, system or provider-managed content.
- Clear the flag only through a supported VDS operation and only when the volume role permits it.
Assigning a drive letter first is not a workaround because hidden state is the blocking policy. On MBR basic disks, some flags can affect the entire disk and future volumes. A management tool should display that scope and avoid exposing protected partitions simply to make an operation succeed.
Volume flags · ClearFlags · AddAccessPath
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