Yes, you can have them. Try doing Disk Clean up and then running disk defragmenter (found in Accessories>System Tools) to help condense the areas where things are saved.
If most of the drive is fragmented, then you should think seriously about backing up your documents, etc. on a disk and consider shopping for a new harddrive and/or computer.
zerofill in harddisk and bad sectors
Bad Sectors are permenent defects on a Hard Disk Drive (HDD). It maybe come from a factory defect, or an external problem. Keep the hard disk safe and away from any magnetic force or dirt and dust and you can prevent having Bad Sectors on your HDD.
any eye and butt will explode
Hard disk formatting means preparing new space for data storage. This is by creating tracks and sectors in the disk.
No. Chkdsk may find disk errors relating to bad sectors. You want to correct these errors, locking out the bad sectors, before you defragment the disk. This is because a defrag will rearrange vast amounts of information that is on the disk, and you don't want portions of previously-readable files moved to bad sectors and be thus made unreadable.
Try <A href="www.goodlucksoft.com">PBD(Partition Bad Disk) to isolate bad sectors and fix the bad sector problem.</A>
Disk Defragmentation
run chkdsk to mark them bad, or use PBD(Partition Bad Disk) to isolate the bad sectors.
Most newer drives have built-in diagnostic tests known as "SMART." In your BIOS, make sure SMART monitoring is enabled. If there is a problem with your hard drive, it will display a message when you boot up. For older drives, or for computers that don't support SMART in their BIOS, the drive manufacturers usually have diagnostic tools you can download for free from their website. These can read the SMART status of the drive, as well as perform manual read/write tests.
hard disk save data on platters. On platters there are tracks and sectors in which the data is saved.
That would be called low-level formatting.
As data in binary format of 0 & 1 on hard drive sectors.