Windows 8 and Duxa's All in 1 Tool

[Killegore]

Got a friend trying to load P99 on their computer. They went to the forums and clicked the link for Duxa's All in 1 Installer tool. However, it isn't working. They are running Windows 8 and it isn't installing. Once it reaches the point to select the destination it won't let them choose destination. Says Error unable to install here. Anyone know what to do?

[Tupakk]

Run installer as administrator.

[Killegore]

Tried that, didn't work. Neither did trying to install it directly on to the C drive