If your friend wants to stick with the software then reinstall and hopefully this will do the job, if not then remove as above and try an alternate like Free Download Manager, ignore the red warning from McAfee. McAfee / SiteAdvisor was asked to change the warning to green 8 months ago as the red warnings relate to linked sites, not FDM
That is NOT what McAfee SiteAdvisor says at all. This is what it actually says.
243 red downloads
As well as links to red sites.
The chances of that site ever being changed to anything other than red is zero and for very good reason.