If you mistakenly decided to not trust any software module (this is valid for any Windows app), you can Undo it by going in the Windows Control Panel, under "Internet Options", look for the "Content" tab, there should be a "Publishers" button, that will list the software publishers that you trusted, and another tab with untrusted publishers. If you see "Virtuali", remove it from both tabs (especially if it's under untrusted)