MFT

  Wolfshead 20:53 07 Dec 06
Locked

I keep getting an error message saying that "the file or folder C:\$MFT is corrupt and to run the disk check utility." I've done this three times but still keep getting the same message. I cant find the file or folder listed on Windows explorer anywhere. I understand that MFT refers to the Master File Table which is a record of the addresses of all the files and folders within windows. The machine seems to work OK. Is this a virus?

  Fruit Bat /\0/\ 22:33 07 Dec 06

As more files and directories are added to the file system, it becomes necessary for NTFS to add more records to the MFT. Since keeping the MFT contiguous on the disk improves performance, when an NTFS volume is first set up, the operating system reserves about 12.5% of the disk space immediately following the MFT; this is sometimes called the "MFT Zone". This is a substantial chunk of real estate to reserve, but bear in mind that it is still usable. Regular files and directories will not use this space until and unless the rest of the disk volume space is consumed, but if that occurs, the "MFT Zone" will be used. Eventually, if there are enough entries placed in the MFT, as it expands it will use up the "MFT Zone". When this happens, the operating system will automatically allocate more space elsewhere on the disk for the MFT. This allows the MFT to grow to a size limited only by the size of the volume, but this fragmentation of the MFT may reduce performance by increasing the number of reads required for some files, and the MFT cannot generally be defragmented.

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