control panel->System->Advanced->Startup & recovery->Settings->pod system startup imaš gumb edit koji ti otvara boot.ini datoteku u kojoj se definira s kojeg diska i s koje particije se što boota
[boot loader]
timeout=30 'vrijeme prikazivanja menu-a kod bootanja
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional-pata" /fastdetect /bootlogo
multi(0) disk(0)rdisk(1)partition(1)\WINNT="Microsoft Windows XP Professional-sata" /fastdetect
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multi(W)disk(X)rdisk(Y)partiton(Z)
Parameter Multi Parameter Definitions
W The number of the adapter, usually 0.
X Always 0.
Y The number for the disk on the adapter, usually between 0 and 3.
Z The partition number. All partitions that are in use receive a number. Primary partitions are numbered before logical drives.
The first valid number for Z is 1; W, X, and Y start at 0.