Bir hard diskte bilginin saklanabildiği en küçük bölge sektördür ve sektörler disk plakarı üzerine yayılmıştır. Bu sektörlere okuma/yazma kafalarıyla ulaşılır ve bu kafalar okuma/yazma işlemini plakalara değmeden manyetik olarak yaparlar. Disk çalışmadığı zaman da okuma/yazma kafaları plakalar üzerinde Landing Zone denen bir bölgeye "iniş" yapıp orada dururlar. Güçte ani bir kesilme veya bir dengesizlik ( sarsılma veya düşme ) sonucu bir kafa disk yüzeyine çarparsa Head Crash dediğimiz kafa çarpma olayı olur. Kafa landing zone yerine bir sektörün üzerine düşerse o sektör hasar görerek kullanılamaz hale gelir ve kullanılamayan bu bozuk sektöre Bad Sector denir. Diski tekrar sorunsuz olarak kullanabilmek için Scandisk gibi bir araç kullanılarak diskteki bad sectorler kullanılmamaları için işaretlenmelidir. Başka bir yöntemse diske low level format atarak sektörleri tekrar oluşturmaktır, bu esnada sektörler plakadaki bozuk kısımlar atlanarak sağlam bölgelerde tekrar oluşturulur.
NOT:low level format eski sistemlerde mümkündür yeni sistem bilgisayarlarda bu yapılamaz...bunun için windowsunuzu bad sector olmayan hardiske kurun ve bad sector olan harddiskinizi scandisk yapın bad sector olan kısmı bölün ve kullanım dışı bırakın bu şekilde bad sector büyüyemez ve sisteminizin hızını etkilemez
bunun yanı sıra Abstradrome firmasının ürettiği HDD Regenerator 1.51 (deneme sürümü) programını kullanarak bu sorunu çözebilirsiniz...
PROGRAM HAKKINDA BİLGİ
Program features
Ability to detect physical bad sectors on a hard disk drive surface.
Ability to repair physical bad sectors (magnetic errors) on a hard disk surface.
The product ignores file system, scans disk at physical level. It can be used with FAT, NTFS or any other file system, and also with unformatted or unpartitioned disks.
Bootable regenerating diskette allows starting regenerating process under DOS automatically.
Bootable regenerating CD can be created from the program and used to automatically start regenerating process.
Main benefits
Hard disk drive is an integral part of every computer. It stores all your information. One of the most prevalent defects of hard drives is bad sectors on the disk surface. Bad sectors are a part of the disk surface which contains not readable, but frequently necessary information. As a result of bad sectors you may have difficulties to read and copy data from your disk, your operating system becomes unstable and finally your computer may unable to boot altogether. When a hard drive is damaged with bad sectors, the disk not only becomes unfit for use, but also you risk losing information stored on it. The HDD Regenerator can repair damaged hard disks without affecting or changing existing data. As a result, previously unreadable and inaccessible information is restored.
How it works
Almost 60% of all hard drives damaged with bad sectors have an incorrectly magnetized disk surface. We have developed an algorithm which is used to repair damaged disk surfaces. This technology is hardware independent, it supports many types of hard drives and repairs damage that even low-level disk formatting cannot repair. As a result, previously unreadable information will be restored. Because of the way the repair is made, the existing information on the disk drive will not be affected!
Can the HDD Regenerator repair your drive?
Almost 60 % of damaged hard disks can be repaired by regeneration. You can always download free demo version and try to regenerate the first found bad sector. The main purpose of the unregistered demo version is to display a report which contains information about the possibility to regenerate the entire disk by means of the registered full version. If the first found bad sector has been successfully regenerated, you can buy the product to regenerate all bad sectors on your hard drive. If the first bad sector has NOT been successfully regenerated, then replace your hard disk drive as soon as possible.
Important notes
Since the program does not change the logical structure of a hard drive, the file system may still show some sectors marked earlier as "bad", and other disk utilities such as Scandisk will detect logical bad sectors even though the disk has been successfully regenerated and is no longer damaged by physical bad sectors. If you want to remove these marks, repartition the hard disk drive.
linki:
http://www.dposoft.net/
Anasayfa 
