After having issues with a Western Digital 200 GB hard drive and Windows XP I thought it would be beneficial to put my notes into some sort of guide for other people that might have a problem with Windows and drives that are bigger than 137 GB (128 GB binary).
Windows XP Service Pack 1 eliminates the 137 GB (128 GB binary) barrier (Windows XP SP1 includes 48-bit LBA support for ATAPI disk drives). The Microsoft Knowledge Base Article: How to Enable 48-bit Logical Block Addressing Support for ATAPI Disk Drives in Windows XP is something everyone should read if they are having the problem of a large hard drive not being completely recognized. This Knowledge Base Article could help you solve your problem quickly but if it doesn't then continue reading. Do bare in mind