looks like a straight forward upgrade from vista,which will save a lot of hassle

merlinx states in click here 'According to CNET those who pre-ordered Windows 7 'E' through a recent discount offer will get the full version, as Microsoft had promised. Microsoft will now be selling Windows 7 upgrade copies and a higher-priced full version (for those without a previous copy of Windows) similar to the rest of the world.'

I hadn't realised that it was Opera, a Norwegian company, who had complained about Microsoft, an American company, to the EU.

Since neither Norway or the US are members of the EU why are the EU getting involved?

There are World Trade Agreement procedures for disputes such as this.