chkdsk problem

running plain chkdsk from cmd  reveals several errors that go uncorrected.
 I've discovered I can't run chkdsk /F while the system is running, and have said yes to the prompt that makes it run at boot up.  But at boot up it says there are no disk errors...even though running chkdsk from cmd again when the system is up reveals the same errors...

how can I fix these errors?  is there a 3rd party utility that will let me do it or how can I get chkdsk /F to work?  

Who is Participating?
andymsmith18Connect With a Mentor Commented:
i don't think you have a disk error its moor likely chkdsk is trying to scan its own in use files and failing thats the reason it shod not be run on the c drive when windows is running the files in the prefetch folder may have got to big open the \WINDOWS\Prefetch folder and delete every thing in it for a nice speed increase at boot up i do this every 2/3 months
Lee W, MVPTechnology and Business Process AdvisorCommented:
What are the errors?
Pete LongTechnical ConsultantCommented:
Hard Drive Diagnostics

*****Vendor Specific Support/Diagnostics*****

Maxtor/Quantum (Fireball)
Western Digital

If you do not know the drive manufacturer try some generic drive testers


Zdu is a diagnostic utility for disks & directories. It comes as a GUI version as well as a command line only version (both included).

Everest Home Edition
An easy to use report wizard allows you to create detailed reports in the format of your choice


Disk Checker is a disk diagnostics, repair and disk image tool for FAT and NTFS.

Drive Health
Drive Health helps you to estimate your hard disks life resource. It allows you to predict possible hard drive failure
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day7Author Commented:
My system is in Spanish
>>>\WINDOWS\Prefetch\  La primera unidad de asignación no >>>>>>es válida. La entrada estará truncada.
>>>\WINDOWS\Prefetch\  La primera unidad de asignación >>>no es válida. La entrada estará truncada.
translates something like this:
   \WINDOWS\Prefetch\  The first  allocation unit is not valid.      The entry will be truncated.
   \WINDOWS\Prefetch\ The first  allocation unit is not valid.  The entry will be truncated.

Below I pasted everything...

El tipo del sistema de archivos es FAT32.
El número de serie del volumen es 9CD2-7D4E
Windows está comprobando archivos y carpetas...
Windows ha encontrado errores en el disco, pero no los corregirá
porque la comprobación del disco fue ejecutada sin el parámetro /F (fix).
\WINDOWS\Prefetch\  La primera unidad de asignación no es vál
ida. La entrada estará truncada.
\WINDOWS\Prefetch\  La primera unidad de asignación no es
válida. La entrada estará truncada.
Comprobación de archivo y carpeta completa.
¿Desea convertir cadenas perdidas en archivos (S/N)? s
16 KB estarían en 2 archivos recuperables.
Windows encontró problemas con el sistema de archivos.
Ejecute CHKDSK con la opción /F (fix) para corregirlos.
    9.765.488 KB de espacio total en disco.
      445.800 KB en 694 archivos ocultos.
      113.560 KB en 13.873 carpetas.
    8.834.368 KB en 125.554 archivos.
      371.648 KB están disponibles.

        8.192 bytes en cada unidad de asignación.
    1.220.686 unidades de asignación en disco en total.
       46.456 unidades de asignación disponibles en disco.
day7Author Commented:
thanks, andysmith18
I deleted the prefetch folder...problem solved
day7Author Commented:
not the prefetch folder, but it's contents
happy to help mate
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