Hey guys.
I seem to have an issue that only works specifically on .msi files at the moment, though I've only tried a limited number of installers;
Hamachi,
SwitchVPN, and a
Java update for Chrome. I'm able to install .exe files such as ShareX and Revo Uninstaller. I have recently used CCleaner to clean the registry. I have had Hamachi working on this computer in the past.
I've spent the past hour googling around this, and I'm utterly stumped. :/