For information purposes:
Microsoft has announced that users of Windows 7 and Windows 8.1 will be offered Windows 10 as a free upgrade. There will be a time limit of 1 year after the release date of Windows 10 release to accept the offer.
There has been no firm date given for the release of Windows 10 as far as I know but it is likely to be in the latter part of 2015.
Can You Name 5 More Songs? (number 2)