Windows 7 Beta may be available as a free download, and it may run pretty well right now. But it’s still beta software. And that means that:

Microsoft wants to remind users that they’re looking at beta software.
The company is hoping to solicit feedback to make the operating system better before the final version is released.

To that end, the company puts a watermark in the bottom right corner of the desktop that reads “Windows 7 For testing purposes only.” And almost every system application has a link in the upper right …