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I am trying to install Windows 7 onto a PC which has no OS installed. The HDD has been pre-formatted. I am installing using a genuine MS Win7 disk and adjusted DOS such that first boot device is the CD/DVD drive with the HDD as second. Both drives are recognised and listed OK in DOS set up pages. All started off OK and when asked I selected Custom Install which was then followed with screen asking where I wanted to install but unfortunately there were no drives listed to select from. When you then try to search for drives you get message drivers could not be found. I checked manufactures web site (Hitachi) to see if one could download a driver for my HDD type HDP725050GLAT80 Deskstar P7K500 but downloads are offered as it states that drivers are standard feature of MS XP, Vista and Win7, not helpful when you do not yet have an OS on your system!! Any suggestions as to how I can resolve this would be appreciated.

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  • a_hall6 Feb 05, 2010

    Thanks, can confirm there is only one hardrive installed and jumpers are set so that it is the master. Not sure how I go about deleting and creating partition, can this be done in DOS setup?

  • a_hall6 Feb 06, 2010

    Thanks again, I have removed HDD (nominal 500 GB) and connected to another computer where it is recognised as 'K' drive. Have carried out a Quick Format to make sure am starting off clean then gone to Computer Management(local) then to Sorage-Disk Management where drive 'K' is listed OK. When I click on 'K' it indicates as Disk8 Basic 465.76 GB NTFS Online Healthy (Primary Partition). From this I deduce that it does already have the required partition. Before I put it back into the problem PC is there anything else I need to do? You mention checking the RAM how do I do this?


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There should be enough drivers on your Windows 7 installation CD to at least install Win 7.

Since you did check your jumpers on the drive so that the drive is set to Master, be certain and that your ribbon cable is OK and snug to the drive.

Before attempting to install Win 7 again, go into your BIOS (usually F1 or F2) and be certain that the drive is present. While there, check your memory to see if the amount is correct.

If the drive is still not present, since the drive and cable are OK (if you used the same cable to test in your other computer), then the IDE connector on the board could be faulty. It's also possible that there is a hardware conflict, thus the other expert suggested that you check the RAM, especially if the amount found is incorrect. Remove both (all) modules and insert one at a time to test.

Hope this helps.

Posted on Feb 06, 2010

  • NinaE Feb 06, 2010

    In addition, I learned that not all motherboards can recognize this drive.


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Try to avoid using the DOS mode in formatting and creating/deleting partitions. Try to use the Windows XP Installer in deleting and creating a partition or other any partition managers (but I recommend XP Installer to be used in managing partitions). After creating the partition using Windows XP Installer, try to reinstall the Windows 7 Operating System and that should do the trick. If you have further question, just reply to this message.


(Please vote for my solution if it solved the problem)

Posted on Feb 06, 2010

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You need to create partition of your harddrive again with FAT32 or NTFS
delete old patition then create new partition.
Also make sure that at least 1 harddrive is set as master with jumper settings.
Then check.
Let me know if you need further assistance.
Thanks for using FixYa.

Posted on Feb 05, 2010

  • If your harddrive is recognize in bios and not when you try to install.
    Also make sure RAM works fine .Because if yopur RAM has issue then it not show harddrive during installation.
    You can partition harddrive with partition magic software or connect this harddrive to anther computer then you can partition it there with disk management or my computer .
    Let me know if you need further assistance.
    Thanks for using FixYa.


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