HP ProBook 4525s Installing SATA Drivers on HP Notebook PCs - White Paper - Page 13
For XP 32-bit
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6) Open a blank text file in notepad and input the following: a. For XP 32-bit: REGEDIT4 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CriticalDeviceDatab ase\pci#ven_1002&cc_0106] "Service"="ahcix86" "ClassGUID"="{4D36E97B-E325-11CE-BFC1-08002BE10318}" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ahcix86] "Type"=dword:00000001 "Start"=dword:00000000 "ErrorControl"=dword:00000001 "Tag"=dword:00000021 "ImagePath"="system32\\drivers\\ahcix86.sys" "Group"="SCSI Miniport" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ahcix86\Parameter s\PnpInterface] "5"=dword:00000001 b. For XP 64-bit: REGEDIT4 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CriticalDeviceDatab ase\pci#ven_1002&cc_0106] "Service"="ahcix64" "ClassGUID"="{4D36E97B-E325-11CE-BFC1-08002BE10318}" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ahcix64] "Type"=dword:00000001 "Start"=dword:00000000 "ErrorControl"=dword:00000001 "Tag"=dword:00000021 "ImagePath"="system32\\drivers\\ahcix64.sys" "Group"="SCSI Miniport" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ahcix64\Parameter s\PnpInterface] "5"=dword:00000001 7) Click File>Save As. When the Save As Dialog box comes up, change the file name to "AHCI.reg" and change the Save as Type to "All Files". Click the Save button 8) Open My Computer and browse to the directory where you saved AHCI.reg. Double click the file to execute it. It will pop up a message asking if you are sure you want to add this information to the registry, click Yes. It will then pop another message informing you that the information was successfully entered into the registry. 13