Windows 7 Ultimate: is it allowed to install it on another computer, legally-wise? [duplicate]

"If you buy a retail copy of Windows, you are allowed to use it on one computer at a time (assuming you do not purchase a family pack). You may change which computer you have it installed on at any time. If you move it onto your new computer, you are supposed to remove it from the first one.

After installing Windows, it checks online and activates itself with Microsoft. Unless the same CD key is used too often, they'll allow it to activate. If for some reason they don't, you can call Microsoft and they will either re-activate your key or provide you a new one at no charge."