FDISK

This will show if the drive (if it can be read) is partitioned properly. Should be an PRIMARY - ACTIVE partition of at least 90MB (roughly) for Win 9X to install.

Can you access the system BIOS... Press F1 when it is displayed on the computer screen during boot up to go into the setup program (see notes below).

Ref: http://support.tandy.com/support_computer/doc34/34618.htm

For menu to check and be sure BIOS is recognizing HD.

-- NOTES:
There are some common key functions that can be used to access most brand name computers Setup (BIOS).

Caution: Be careful when you make changes within the Setup (BIOS). Keep a documented list of each change made in case you need to restore a previous setting.

Many computers display instructions on how to access the system Setup (BIOS) while the system is booting. To access the computer's Setup (BIOS), you will need to press a key or a combination of keys before the operating system begins to load. Some common keys are ESC, F1, F2, F10, Ctrl-Del or Del. For more information, check the documentation that came with your computer to find out how to gain access to the computer Setup (BIOS).

Note: If you are still unable to access your computer Setup, please refer to the documentation that came with your computer.