1. read time of hard drive clusters is less than 500ms 2. 33% of hdd space is unreadable 3. bad sectors on hard drive or damaged file allocation table 4. boot sector of hard drive disk is damaged 5. hard drive doesnt respond to system commands. dell inspiron 1545. 6 other errors appear when starts up all concerning ram and defragmentation but vista repair clears them, then they apear next stat up.

C:\Documents and Settings\mpos>chkdsk c:
The type of the file system is
NTFS.

WARNING! F parameter not specified.
Running CHKDSK in read-only
mode.

CHKDSK is verifying files (stage 1 of 3)...
File verification
completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index
verification completed.
CHKDSK is verifying security descriptors (stage 3 of
3)...
Security descriptor verification completed.
CHKDSK discovered free
space marked as allocated in the
master file table (MFT) bitmap.
CHKDSK
discovered free space marked as allocated in the volume bitmap.
Windows found
problems with the file system.
Run CHKDSK with the /F (fix) option to correct
these.

156280288 KB total disk space.
12116176 KB in 34467
files.
11304 KB in 4337 indexes.
0 KB in bad sectors.
110084 KB in use
by the system.
65536 KB occupied by the log file.
144042724 KB available
on disk.

4096 bytes in each allocation unit.
39070072 total allocation
units on disk.
36010681 allocation units available on
disk.

C:\Documents and Settings\mpos>

THIS IS WHAT I GET WHEN I
TYPE IT IN. WAIT A FEW MINUTES WHEN U TYPE CHKDSK E:OR TYPE IN
TYPE IN
CHKDSK E: /F

By specifying an override value during the format process (which will destroy all data already on the partition you're formatting) or by using a third-party tool to non-destructively resize your hard drive allocation units (also called clusters, blocks, or inodes). If you're hard drive is formatted NTFS then you can't use NTFS compression if you raise the cluster size above 4,096 bytes (4KB). Also keep in mind that increasing cluster size can potentially waste more hard drive space, especially when you've got many files that are significantly smaller than a single cluster. For example, in Windows XP a 1 kilobyte file still uses one entire 4KB cluster, and only one file can use a given cluster at a time. 1,000 of these 1 kilobyte files would use 1,000 clusters but only fill about 25% of the space; the remaining 75% would be wasted.

Conversely, smaller cluster sizes can start impacting performance since they require more time to locate and read than larger clusters. Thus you need to get the right balance of the least amount of wasted space for smallest performance hit. Windows XP is optimized for 4KB clusters (it's default for 2GB+ hard drives), so you're best leaving it alone if that's what you have.

Link:
http://support.microsoft.com/kb/314878 -- Microsoft's info on default cluster sizes.

You should replace the hard disk. However, saving and copying your data is more difficult than simply replacing the hard disk. I suggest taking your laptop to a local service center for replacement. If you data is not important you can simply install a new hard drive and use a restore cd to bring your laptop to where it was when you first purchased it. Continuing to use your laptop with failed sectors will only result in lost data and eventually failure to boot up properly.

I purchase my laptop parts here and have been very happy:

http://www.laptopking.com/

You need to format your hard disk. Please note that formatting will erase all you data from the hard disk and all the software including the Operating system.

If you have your OS master CD you can insert it in the cd/dvd drive and restart the laptop. This will detect the OS CD and try to install it. In the installation process there is an option "Format your hard drive". You should select that option. Then it will format, mark the bad sectors, create a new boot sector and install the OS. You will be just fine.

your HDD may be corrupted, re-installing windows vista is one option. Your best bet is if you have/ can obtain a copy of windows vista run setup and try the repair wizard in the windows vista setup, the wizard automatically finds errors and missing files and replaces them therefore solving any errors in your HDD. you can also try to use the recovery wizard from your recovery disc. best of luck

you could run the chkdsk utility
click start run type cmd then type chkdsk/r/f which will scan for and attempt to repair any bad sectors and automatically fix any corrupt files on your hard drive another way of running the chkdsk utility
click start control panel administrive tools,computer management ,disk management right click on your drive select properties click tools you should see click check now click start two boxes automatically fix files and scan for and attempt recovery of bad sectors place then a tick in both boxes then select check now,start should schedule this task when restart
do not do anything while the chkdsk utility is in progress any input may damage your computer
then defragment your hard drive
hope this helps

First, CHKDSK usually does not do a "full" test of your disk-drive.
It does read the "Table-Of-Contents", and it does "itemize" each file on the disk-drive, looking for files in the T.O.C. but *NOT* on the disk, and looking for files *NOT* listed in the T.O.C., and looking to ensure that each "block" on the disk is allocated to "free" space or is allocated to EXACTLY one file.

It's possible that one of the two disks is "dying", and it's the 'RAID' structure that is providing some data from the "other" disk in the set.

Use the following link to download the software, which helps u to detect as well as completly remove badsectors, but before u do tat, here is the answer for wat is bad sectors..

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.

ths is the software

A powerful hard disk tool that can detect and repair physical bad sectors on a hard disk drive surface and regenerate hard disk.

http://www.4shared.com/file/49739096/5f24d2c2/HDD_Regenerator_151_Full.html?s=1

yess u can :

Try first : SRART - RUN - CMD - THEN WRITE CHKDSK E:
ENTER and wait..Try if it will open if not just email me and i will take care off it [email protected]