[mythtv-users] OFF TOPIC: How to make a Linux machine BACK into a Windows machine?

[Leif Pihl]

As subject line says... 

One of my Linux machines needs to be converted back into a Windows 8.1 machine. 
BUT 
When I place the Windows Optical media in the optical drive and restart the machine, the BIOS, etc. does not give me the chance to boot from the Optical drive.  It appears to not even recognize that there IS an optical drive.  

What do I need to do? 

My hunch is that I need to take out the hard disk and format it with our MacBook and a HD SATA to USB adapter.  

My problem is, if the machine doesn't "see" the optical drive now, will it when the HD is no longer in a Linux compatible format? 

Am I on the right track?