Windows 10 will arrive July 29th, but which doesn't necessarily mean everyone decide to go on day 1. Case in point: A Lenovo representative told Windows Central how the company is going to take orders for PCs with microsoft visual studio professional 2013 preinstalled on launch day, but that people machines won't ship until about mid-August.

Why the delay? Look no further than Redmond. Microsoft released Windows 10 to PC makers (the so-called "RTM" or "released to manufacturing" build) after it normally does, which have some PC makers scrambling. A Microsoft rep went on record to state to expect Windows 10 PCs "very soon after" launch, however, not on launch day itself.

Despite Microsoft's statement, however, both HP and Dell say that they'll have Windows 10 machines ready for launch. In HP's case, purchase a Windows 10 PC through HP.com now and have it arrive on launch day, with PCs coming to "select" retailers beginning August 2nd.

Dell will start selling microsoft sql server 2008 r2 PCs for the 29th through its website, and if you opt for next-day shipping, you could have your new Windows 10 PC as soon as July 30th.

The tale behind the story: In past years, Windows launches are already highly coordinated affairs: PC makers would normally obtain the final RTM build weeks in advance of the official release, in order that they would have time for you to install the modern OS onto their new PCs over time for launch day. These times, the RTM comes relatively late in the process. Build 10240, which has been previously considered to be the RTM build, didn't arrive until yesterday.

But Microsoft changed its way of Windows releases beginning with Windows 10, and that apparently means an alteration to back-end procedures, too. However, the fact Windows 10 will probably be free for all users of buy windows 7 home premium and 8.1 softens the blow some, and makes any delay on PCs with Windows 10 preinstalled easier to stomach.