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ERROR_DISK_TOO_FRAGMENTED
Disk fragmentation prevents the operation
ERROR_DISK_TOO_FRAGMENTED indicates that sufficient total free space may exist but the storage system cannot satisfy the required allocation because of fragmentation or metadata-layout constraints.
What to check
- Check free space and fragmentation as separate conditions.
- Identify whether the operation requires a large contiguous allocation.
- Review volume health and file-system event logs.
- Avoid repeatedly retrying a large allocation without changing disk state.
How to handle it
Free or consolidate space using supported maintenance tools, or choose another volume. Back up important data before invasive storage maintenance.
References
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