Microsoft has continued to be relatively vague about when Windows 10 will launch, repeatedly saying that the OS is coming "this summer." However it appears as though AMD CEO Lisa Su has spoiled Microsoft's surprise, revealing a more specific launch timeframe for Windows 10: the end of July.

Su revealed the launch timeframe while responding to a question during AMD's latest earnings call. Speaking about inventory plans, Su said that "with the Windows 10 launch at the end of July, we are watching sort of the impact of that on the back-to-school season, and expect that it might have a bit of a delay to the normal back-to-school season inventory build-up."

The launch timing makes sense, as Microsoft and its OEM partners could be looking to boost Windows system sales during the back-to-school period with the launch of the new OS on new devices. By many reports Microsoft has also already entered the feature lockdown stage for Windows 10, indicating the OS is well on its way towards being shipped.

However, a July launch frame is only three months away, and judging by the latest Technical Preview builds, Microsoft still has a long way to go before Windows 10 is polished and bug-free. No doubt the company is working hard on cleaning up the code and ensuring it works smoothly, but there is still a lot of work to be done if they do intend to launch the OS at the end of July.