PARTITON AUTOMATICALLY CHANGS INTO RAW FORMAT FROM NTFS AFTER SOMEDAYS

i have following computer specifications.

1.          CPU 3.2GHZ Pentium(R) D CPU
2.          RAM 2GB
3.          INTEL BOARD 945G EXPRESS.
4.          HARD DRIVE 1.5TB PARTITIONS C TO I
5.          OS= WINDOWS XP PRO SP3
6.          Avast Antivirus 7.0 FREE

FOLLOWING PROBLEM IS FACING LAST 3 MONTHS, BEFORE IT MY PC WAS WORKING FINE.

OVER ALL MY PC IS WORKING FINE. BUT PARTITION "G" WHICH IS 220GB, HAS STRANGE PROBLEM THAT

AFTER SOME DAYS LATER ITS FILE SYSTEM IS CHANGED FROM NTFS TO RAW FORMAT. AND IT SHOWS 0 BYTS.

IT CAN QUACK FORMAT BUT NOT NORMAL FORMAT FORM FORMAT PARTITION OPTIONS.

BUT WHEN I FORMAT THIS PARTITION, ITS START TO WORKS BUT SOME DAY LATER, OR MAY BE THE SAME

ITS FILE SYSTEM IS CHANGED INTO RAW FROM NTFS.

AFTER CHANGING INTO RAW FORMAT, PC BECOMES VERY SLOW.

NOTE: In windows 7, I have to not face this problem. But I have to use winxp sp3 due to some

Software compatibility issues.

Please help me

Regards.

Neeo

Neeo