We need a special tool from Microsoft. It's a hefty 64.3 MB download but it's worth the trouble.
Please download & install the Microsoft Diagnostics and Recovery Toolset
Once you have it installed, locate the file :
C:\Program Files\Microsoft Diagnostics and Recovery Toolset\erd50.iso
It's another ISO file which you may burn onto a CD.
Reboot the machine with the ISO CD. I shall have further instructs in awhile
OK, I just tried booting my work pc with the same boot CD and got basically the same message. The burning software I used to make it was Sonic DigitalMedia LE v7 and is basically all I have access to.
Any free 3rd party burning software recomendations I can just download? I'll keep looking throughout the day…