Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.
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It looks like file is under different claster that is registered in allocation table.
When you run chkdsk then program is going through index and compare with physical file allocation. It there is an issue it is correcting index for file location.