Hi Mary, Here is some additional information you may find helpful. The following is from Western Digital Service and Support and this page has two links to Microsoft Knowledge Base articles on the subject. The full capacity of EIDE drives larger than 137GB (128GB binary) is not recognized in Windows 2000/XP http://tinyurl.com/48jvz Sven Swanson, Sr. ----- Original Message ----- From: "Mary Boyes" <[log in to unmask]> To: <[log in to unmask]> Sent: Tuesday, August 03, 2004 9:42 PM Subject: [PCBUILD] Hi All Just finished building my first PC. Had a lot of fun and it was a success except for the hard drive partition. The drive is a Maxtor 160GB ultra series. Windows only can partition up to 137GB so I can't use all the storage on the drive. I found the Maxtor support page on this problem and I downloaded sp1 and then the Maxtor Big Drive Enabler. When I installed the Maxtor Big Drive Enabler it said it was installed but when I went to device manager it said the size of C is 131 GB but in the BIOS and under capacity in device manager it is 160 and 156 GB. I am thinking that I need to have winxp with sp1 before I format and downloading it after is not effective or am I doing something wrong. Is there a way to get my C drive up to full capacity? My motherboard is a ASUS P4S8X with a sis648 so I can't use the Intel fix. I could get an Ultra ATA PCI adapter card if there is no other way and do another winxp clean install. Although 137 GB is large enough I still would like to have the use of all the storage. Thank you Mary boyes Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://freepctech.com