Make sure all hard disk drives are powered up and properly connected to your computer. If certain that the hard drives are properly connected, check the following:
Scan the drive for viruses, if the Master Boot Record is infected, Windows NT may not see the hard drive properly. Please use a commercial scan program, in addition to MS Virus scan. Even if the drive is NTFS, the Master Boot Record can become infected.
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If the hard drive is EIDE, check the following:
- Verify that the system drive is the first drive on the first IDE controller on the motherboard.
- In the system BIOS, verify that file I/O and/or disk access are set to standard. Most computers ship with access set to either 32-bit or enhanced access.
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If the drive is IDE or ESDI, check the following:
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Verify the controller is functional in a different computer if possible.
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If the drive is larger than 1024 cylinders, make certain that a supported disk configuration utility is used.
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Verify the drive is jumpered correctly for master, slave, or single drive.
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