I agree with tbh1 - as a first step, try to fdisk and then format the new drive - see click here for details.
As stated above, be very sure to choose the correct drive to fdisk and format, or you will end up wiping your C: drive. It is not at all difficult - just tread slowly and carefully if you have not done it before.
To make sure you don't make a mistake, unplug the IDE cable and power from your existing hard drive and plug them into your new drive. Make sure the BIOS detects the new drive. Now use the boot floppy to fdisk, partition and format (don't forget to make the partition active) When finished put the cables back to how you had them originally. No chance of picking the wrong disk this way.
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