Have you been patiently waiting for your PC to tell you that your reserved copy of Windows 10 was ready? So have I, until I stumbled across this link to the Microsoft website where you can download Windows 10.
If you've already got a Windows 7, Windows 8 or Windows 8.1 serial key, you can download Windows 10 to a USB flash drive or ISO file. The download link includes the Download Tool, available in both 32- and 64-bit, where you can download and install Windows 10 easily. Mine has just finished downloading, so the servers are full steam ahead right now thanks to Microsoft reserving a huge 40Tbps of bandwidth for the launch of Windows 10.