Access denied error during installation

[DAGNABBITt]

I'm running into this error (see attached pic). This happens whenever I try to install OS after SPV3, even when I right-click an Run as Administrator. How can I get past this issue?

.

[BinToss]

I don't have enough information to find the cause of the issue.

I'll have to find every single line of code that is supposed to catch that exception and redirect it to a new text box that can show more info.