Microsoft Corporation is going to allow buyers of Windows 7 PCs to upgrade to Windows 8 Pro for US $14.99 from 2 June. This promotional deal seems to be a step to prevent the slump in sales of PC before the launch of the upcoming Windows 8 operating system.

When the offer will start?

The offer is believed to make its debut at the same time when Microsoft will launch Windows 8 Release Preview, which the software giant has pegged to the first week of June. The most likely date is 5 June, assuming Microsoft follows the same schedule it used in 2009 to deliver Windows 7 release candidate.

The blog post of Paul Thurott indicates that this time around, Microsoft is only offering two mainstream versions of the product to consumers – Windows 8 and Windows 8 Pro.

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