Windows 10 is work in progress at Microsoft, so it's pretty clear that not all details are available right now despite the avalanche of rumors that have reached our ears in the last couple of months.

People close to the matter revealed earlier this year that Microsoft was at least considering making Windows 10 free of charge for users who are already running Windows 8.1 and even Windows 7 on their computers, so this dramatic change obviously caught the attention of many people out there.

A post on Microsoft's UserVoice platform, which was specifically created with the goal of getting feedback from users, also calls for the software giant to make Windows 10 a free upgrade from Windows 8 and 8.1, but surprisingly, it's not really the most voted request right now.