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My hard drive shows only 1.5 GB instead of 100

Hi, I replaced a hard disk in my toshiba satellite laptop (new disk is 100GB, old was 40GB). After I installed XP and then wanted to install more software (and I didn't have enough space) I realized that my hard drive is only 1.5GB. When I go to DOS, it shows 100GB... There are no partitions...
I first installed win 98 and then xp, but I can't use boot disk win 98 because this computer will only install the floppy disk drive if I have XP (the drives are on the factory disk compatible only with xp)...
Any suggestions?

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  • i-vegy Dec 27, 2007

    yes, I installed it from the upgrade disk and didn't convert it to NTFS (how?)... I also uninstalled xp, but the problem was the same on win 98.

  • i-vegy Dec 27, 2007

    thanks but I can't format the drive,

    it gives me a wired message:

    Windows cannot format this drive. Quit any disk utilities or other programs that are using the drive and make sure that no windows is displaying the contents of the drive. Then try formatting again.

    Also this model of toshiba satellite doesn't have an access to BIOS settings.

  • i-vegy Dec 27, 2007

    yes, cd second edition.

  • i-vegy Dec 27, 2007

    system is FAT

    473 MB used space

    1.55 GB free

  • i-vegy Dec 27, 2007

    thanks for the explanation, now I understand what happened. I know only how to convert it to FAT 32, but I have no idea how to repartition it to non dos partition.

  • i-vegy Dec 29, 2007

    I will try later, my other computer has problems, I will have to wait till next week to fix it.

    Thanks a lot for your help and I will let you know how it went.



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Is it correct that you installed XP from an "upgrade" pack?
when you installed XP did you convert the file system to NTFS?

Posted on Dec 27, 2007

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  • olrob Dec 27, 2007

    most win98 installs use a "32bit FAT" file system. this has limitations on the maximum size of partitions and file sharing/locking etc etc. as does the earlier "16bit FAT" (or just FAT). To get the full features of XP you need to run the NTFS.
    (note that there is "early" and "late" NTFS).
    You CAN run XP with FAT-FS, but should only do this if you need to continue accessing the partition with an earlier operating system.

    The best option is to FORMAT the partition as a NTFS partition. If this is not possible (ie because your XP upgrade requires an existing older system and your upgrade pack does not give you the option to reformat into NTFS) do the "conversion" at the earliest stage possible. Note: the conversion is a "one-way" street, there is no going back.

    Check your BIOS carefully to see if the detected cyls/hds/secs are correct and BIOS is showing the correct capacity. It maybe that the older bios does not contain the correct translation table for the drive. If in doubt select "user defined drive" and enter the "physical" cylinder/heads/sectors as specified by the DRIVES manufacturer.
    Reinstall win98 using the custom install option, carefully think and select options. Install the minimum, choose the highest level of File System available (ie not FAT16) (NTFS is higher than FAT32).
    If things look OK after this proceed to install XP upgrade remembering to selecting to use NTFS. If not looking OK it is time to run Maxtor drive diagnose/install program like MaxBlast available for down load from Maxtor/Seagate web site.

  • olrob Dec 27, 2007

    ah yes the good ol Tosh Sat dilema.. never mind.
    Best to avoid using Windows format anyway.!!

    is your win98 install disk SE (second edition)?
    i am assuming it is a CD?

  • olrob Dec 27, 2007

    in win98: double click "my computer", right click c: drive, click "properties"
    whats the file system? how do the numbers look?

  • olrob Dec 27, 2007

    try Programs >Accesories>system tools>Drive Converter and try to convert the FS to FAT32

    what brand of drive is the 100gb pure Toshiba or Seagate Maxtor Western Dig etc?

  • olrob Dec 27, 2007

    the problem you have is that FAT(16) can only address a volume size of 2.1Gb (1.55gb + 473Mb), and somehow your 100gb drive has been initialized/formated with that. Older op systems like DOS and Disk Manager programs of that era only know about FAT16 so they just call it FAT. even after you convert the fat to 32 bit, you are still stuck with the existing partition size.
    Suggest that you scrap the current content of drive by repartitioning it as one NON-dos partition if possible and definitly not formated.
    Then when you boot from the win98 setup CD, the 2nd or 3rd screen you see should give you the option of "Configure unallocated disk space" or "Exit setup".

    obviously select the former.

    the system should reboot (onto the CD again) and proceed to FORMAT the drive. You should be ok from there.

  • olrob Dec 28, 2007

    OK lets try it this way! If the toshiba blocks you, let me know exactly where.
    Boot from the win98 CD but DO NOT launch setup. Select instead "Start computer with CD-ROM support" it should give you the A:\> prompt.
    type in "fdisk" press enter key. Say Y to large disk support. DELETE all existing partitions. Create 1 primary Dos partition.
    after exiting fdisk Reboot and launch win setup. it should automatically start formating.
    (the maximum volume size for FAT32 -therefore win98- is 137gb).



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