Are there any such CMD COMMANDS to reset the BIOS BACK to default settings including CHANGING the USB Legacy from disabled to enabled, or do I need MS-DOS? Does the CMD even have full control over the BIOS without a PS/2 keyboard?Back to default can be usually done by jumper setting on main board or removing the cmos battery and then replacing teh cmos battery after a few minutes for the cmos to lose its settings and default to default. Some bios's also have a feature to select to set all settings back to default.

Only interaction with bios from command prompt would require addressing it with another program such as a flash utility etc. Some are BOOTABLE floppy utilities which are not really dos and others can be run from DOS or Windows environment.I can't reset it in the BIOS because I disabled USB which means I need a PS/2 keyboard.

What bootable DOS tools are you referring to that can reset it?I'd go with the method of removing cmos battery. Its about the size of a quarter in a desktop computer. Do this with power cable unplugged in case battery pops out and lands on chip legs etc. Then wait a few minutes and then insert the battery back in the correct way. Then reconnect power cable andyou should be back to default.

This will set it back to default.

Some systems have a jumper to use or push button to reset, but if you go messing with jumpers you could mess stuff up badly, so battery removal and reinsertion is PROBABLY safest method for you.
Yes there are.
http://www.wikihow.com/Reset-Your-BIOS


the CMD debug part has worked for me.Code: [Select]@echo off
set dbgFile=%temp%\dbgTmp.txt
>"%dbgFile%" echo o 70 10
>>"%dbgFile%" echo o 71 01
>>"%dbgFile%" echo q
debug<"%dbgFile%"