One of my machines has had 32 bit Windows 8.1 on it for years, the parallel interface card I had in there was no longer needed, so I took it out and started installing 8.1 x64. Goes through the usual stuff, gets the key, checks the keyboard language and things. It gets to the point where it says remove the CD and boot into Windows normally. It doesn't, it comes up in the BIOS. In case the SSD was dodgy, I started again with its other SSD in there alone, a MUCH newer "drive". Same result, BIOS. Any ideas as to whet gives?