And, it told me that the publisher was blocked. Can I unblock the publisher?
Ok, that's a different thing, I thought you blocked just the Addon Manager. Instead, you have blocked Virtuali entirely...
- In the Control Panel, select "Internet Options"
- Select the "Content" tab and click the "Certificates" button
- Select the Untrusted Publisher tab
- Select the Publisher ( VIRTUALI ) you wish to unblock and click the Remove button