Windows 7/8/10 Install Error (0x80300024)

When installing windows on a multidrive/boot system you can sometimes get this rather cryptic error message. It relates to how Windows setup sees your Drive partitions. There are two was to solve it;

1) Disconnect all drives from your PC except the one you are installing Windows on.
2) Enter your BIOS and set the hard drive you are installing Windows on to be the top-priority drive.

Either of those should fix the error message.