Microsoft on Thursday published a blog post that clarifies some of its update plans for Windows 10 on July 29. The company originally identified that as the release date, but it won’t actually be available to everyone immediately.

Instead, Microsoft said July 29 is the date when it will “start notifying reserved systems in waves, slowly scaling up after July 29. Each day of the roll-out, we will listen, learn and update the experience for all Windows 10 users.” Microsoft said that it will begin to alert folks who have reserved the Windows 10 update, and Windows Insiders, “once our compatibility work confirms you will have a great experience, and Windows 10 has been downloaded on your system.” It didn’t say how long it will take until Windows 10 is available for everyone, so there’s a chance you won’t be able to grab it right on July 29.

The company also said that, while the general release date for Windows 10 Pro and Windows 10 Home is July 29, the Windows 10 Enterprise and Windows 10 Education on Volume Licensing Service Center (VLSC) will begin to roll out a couple of days later on August 1.

You can follow this link to reserve your copy of Windows 10 now and, we hope, increase your chances of getting the download as early as possible.