Steve, Two simple long shots to consider. Is your BIOS checking all disks for bootable sectors? You might try eliminating D: from the boot sequence search, I leave mine A:, C:. Less probably you have virus scan, BIOS built-in probably, enabled and it is telling you it did not scan drive D: with this cryptic error message. Tom Turak [log in to unmask] Hi. > > Steve Dias wrote: > > Problem: Every time we reboot, we get an error message "fixed drive has no > > boot sector". Pressing F1 to continue, machine will boot to Win95 on C:, > > both drives are recognized and useable in Windows. Having a whole second disk with an extended partition is common, to avoid DOS letter assignment misorder. However, if there is a primary partition on the second disk, it is irrelevant if it is marked active or not: normal booting is from the active partition on the first disk; however, recall that modern bios give you options to boot from the second, third or fourth disk (badly indicated as D, E or F), so probably it is necessary to have an active partition to use this feature (bios probably fetches the MBR and gives control to it). Javier Vizcaino. Ability Electronics. [log in to unmask]