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Operating Systems :: DOS :: partition error
By: FiatLink	Date: 15/01/2003 00:00:00	Points: 50	Status: Answered Quality : Excellent
I try to delete all the partitions on the hard-drive using Windows98 startup disk. "Cannot delete Extended DOS Partition while logical drives exist", when attempting to delete a partition. However, upon attempting to delete logical drives, FDISK reports, "No logical drives defined". The C: drive is FAT32 and D: drive is NTFS. D: drive does not show up on the screen when using Fdisk. Can someone give me some solutions. Appreciate it!
By: VGR	Date: 15/01/2003 05:35:00		Type : Answer
you may try using Disk Druid from a linux distribution (usually on diskette)

By: TheFalklands	Date: 15/01/2003 05:42:00		Type : Comment
Whatever OS created the partition may need to delete the partition. VGR hinted of this with Disk Druid. Sometimes Windows OSs cant get rid of other operating systems partitions correctly and you need to use there disk programs to remove them. I do agree with VGR on the fact that Disk Druid does remove most other (All I have tried) partition types. So his suggestion shoud work.

By: monange	Date: 15/01/2003 06:07:00		Type : Comment
Try delpart.exe from <A HREF="http://radified.com/Files/">http://radified.com/Files/</a> It's a Microsoft util for handling non-standard partitions.

By: TheFalklands	Date: 15/01/2003 18:58:00		Type : Comment
You might give Partition Magic a go... it's fairly robust, I've managed to repair/save numbers of disk errors over time with it. Their current version is 8. <A HREF="http://www.powerquest.com/partitionmagic/">http://www.powerquest.com/partitionmagic/</a>

By: sumotimor	Date: 16/01/2003 07:07:00		Type : Comment
If u want to go the safe and free way, grab your hdd brand and model, visit the manufacturer's site and download their official low level format software for your disk, generally something called "Disk Manager" or "EZDrive".

By: collegeBoy	Date: 18/01/2003 21:13:00		Type : Comment
im not really sure if this works, but i did this once. i deleted all drives primary, logical, .. etc. and it worked. then you could create a new partition and reformat it after.

By: robi	Date: 18/01/2003 21:26:00		Type : Comment
There may be a chance that your MBR (Mater Boot Record) is corrupted. Alot of time this happens through partitioning a drive. If you are using Windows 98 boot from startup disk and run fdisk /mbr to fix your MBR. If running on Windows XP, there is a fixmbr command. Bootdisks may be downloaded at <A HREF="http://www.bootdisks.com">www.bootdisks.com</a>.

By: VGR	Date: 20/01/2003 22:00:00		Type : Comment
true. The *best* solutions are in decreasing order : -(try to) fix MBR using undocumented switch /MBR - requires a "DOS" diskette for your OS -Partition Magic 7+ (wonderful tool) -Disk Druid or the other linux tool (running on "DOS") -format using the manufacturer's stuff (here we destroy data) good luck PS I would not recommend EZ-Drive, because it adds a new BIOS level, writes this on disk, executes it at boot time, asks questions, in a word "disturbs" the boot sequence. EZ-Drive is especially useful for "old" OSes not recognizing drives over 4 GB (from memory)

By: digitaltree	Date: 20/01/2003 22:19:00		Type : Comment
As VGR says MBR is best first try. However of course partition magic isa purchased tool and I've had the same issue with this before... Disk druid is good however I prefer and recommend for use in DOS fdisk from freedos (<A HREF="http://www.freedos.org">www.freedos.org</a>) ver 1.10 +. <A HREF="http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/dos/fdisk/">http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/dos/fdisk/</a> the command set is simple fdisk /clearall <disknumber> (proberly 1). If you load it like normal fdisk it will look and act just the same as MS fdisk however will still let you delete the extended drive. I would strongly recommend against low level for something as basic as this. Low level was designed many years ago and is now only used for setting the density on the drive by the manufacturer. Even if you know what ur doing then you have a good chance of ruining ur drive to the point even the manufacturer would not be able to recover it. Because of this alot of drives void warranty by doing this. This is the reason nearly all cmos's have removed low level formatting from the cmos options as people complanied after ruining there drives. Its one of those thing you do for the really scary ones.

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