500gb WD Sata drive only 128gb in XP
I recently installed a Western Digital hard drive into a 1-2 year old HP desktop.
When installing an older version of Wiondows XP it will only show one partition of 128gb.
If I go ahead and finish installing XP, then go into disk manager I can not change the partition size or see any unused space.
The drive only displays as 128gb.
During POST it displays the drive as the 500gb and when I go into setup it will show it as a 500gb, so I assume it is being recognized to a certain extent.
I'm sure I am overlooking the obvious so am asking for help.
Thanks in advance.