Windows IT Pro is the leading independent community for IT professionals deploying Microsoft Windows server and client applications and technologies.
  
  
  Advanced Search 


Return to article

How can I access all of my ATAPI hard disk, which is larger than 137GB?
 

A. Windows XP Service Pack 1 (SP1) and Windows 2000 SP3 add support for 48-bit Logical Block Addressing (LBA), which lets you access hard disks larger than 137GB. To enable 48-bit LBA, perform the following steps:

  1. Start a registry editor (e.g., regedit.exe).
  2. Navigate to the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\atapi\Parameters registry subkey.
  3. From the Edit menu, select New, DWORD Value.
  4. Enter the name EnableBigLba, then press Enter.
  5. Double-click the new value, set it to 1, then click OK.
  6. Close the registry editor.
  7. Restart the machine for the change to take effect.

Be aware that if you multiboot your system with OSs that don't support 48-bit LBA, editing this registry setting might cause data corruption. If you still can't access hard disk space beyond the 137GB limit after you restart your system, your system BIOS might not be 48-bit LBA compatible, in which case you need to talk to your computer manufacturer.







Reader Comments

If you are installing a Maxtor hard drive they have a patch so that you don't have to manually edit your registry.

CCaya -June 10, 2003

Dear Sir Top Urgent i am a customer have a motherboard FIC FR33 VIA "taiwan" i worked from 2 years ago HD40 G.B i want to Buy a new HD 120 GB MAXTOR is this mother board supported to read this HD or not if not pls provide me by attachmet file by e.mail update bios to help me to work with HD 120 GB to 200 GB i await your reply i wish to give me your reply wish to solve me this problem Best Regard Ahmed Kamal

Ahmed Kamal -February 15, 2004

Install Software call: PowerQuest ParttitionMagic 8.0. I have been tried this and it works very well.

John Nguyen -May 22, 2004

I can't access to my hard disk in Linux. What can I do?

Anonymous User -November 16, 2004

Dump the linux and install Windows? ;=)

Anonymous User -January 19, 2005
Windows IT Pro Home Register FAQ for Windows WinInfo News
Europe Edition About Us Contact Us/Customer Service Media Kit Affiliates / Licensing  
SQL Server Magazine Office & SharePoint Pro DevProConnections IT Job Hound
Left-Brain.com Technology Resource Directory asp.netPRO ITTV Windows SuperSite 
 
 Windows IT Pro is a Division of Penton Media Inc.
 © 2009 Penton Media, Inc. Terms of Use | Privacy Statement