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E_SKYDRIVE_ROOT_TARGET_FILE_SYSTEM_NOT_SUPPORTED
The scope of E_SKYDRIVE_ROOT_TARGET_FILE_SYSTEM_NOT_SUPPORTED is Windows cloud-file and sync-engine infrastructure: the selected sync-root target is not on a supported NTFS file system. Preserve 0x80270260 beside the returning call before cleanup or retry creates a more generic secondary failure.
Wrong turns
ROOT_TARGET_VOLUME_ROOT_NOT_SUPPORTED rejects the root directory itself even on a suitable volume; this code rejects the file-system type.
Do not reformat or convert a volume before preserving data and confirming product support.
Object and state
Legacy SkyDrive root relocation depends on NTFS semantics used for metadata, indexing, security and integration. A reachable volume is not sufficient when its file system lacks the required contract.
Capture before retry
- Target volume and file-system type.
- Mount point and volume identity.
- Encryption or removable-media status.
- Existing sync-root registration.
Controlled comparisons
| Control | Interpretation | Hold constant |
|---|---|---|
| Same stable item ID, second supported path | A change separates local file-system/provider state from remote service state. | Keep account, remote version and client build fixed. |
Step-by-step investigation
The investigation should change one variable at a time and keep the original failing sample.
- First: Confirm the volume with system APIs, not path appearance.
- Next: Choose an NTFS folder on a supported local volume.
- Then: Test permissions and indexing before migration.
- Finally: Move through the supported client workflow.
Closure criteria
Closure requires the new NTFS folder registers as a sync root and completes an upload/download cycle after restart; then repeat the next lifecycle operation to detect stale state.
Technical references
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