I had a computer crash in the office yesterday, and quickly bought a replacement. The new machine comes out of the box with Windows 8.1 and Internet Explorer 11.
I fired it up and tried to install the proprietary reservations software we use (this is a travel agency). It won't install.
I called the company, Amadeus, to see what is the problem, and it appears that the software won't work with Windows 8.1 or IE 11. Absolutely must be 8.0 and IE 9 or 10.
Can anybody tell me what I have to do to get this computer back to those earlier versions? This is a mission-critical computer, so I consider this request very urgent. I'll be watching to replies!