NEC Express5800/53La User Manual page 294

E-6 Installing Windows XP
8.
Windows Server XP OEM-Disk for EXPRESSBUILDER will be created.
Write-protect and attach a label, then keep it safely.
IMPORTANT: If you have created "OEM-Disk" into the Flash FDD,
disconnect it after the NEC EXPRESSBUILDER had been
shutdowned.
NOTE:
protected.
Cancel write-protected state.
If you have already cancelled write-protected state, connect the floppy
disk drive again.
If the following message is displayed, the floppy disk is write-