Did you reboot after initial uninstallation from Programs\Features? Try installing the latest tool MCPR and run again.
If you are still having issues you can contact Technical Support (Free) 24/7 https://service.mcafee.com
All the Best,
thx for your prompt reply. Yes all the above have been tried but the symptoms indicate to me failure to launch or start
I will contact support unless there is anything else that can be suggested. One thing which may be relevant is it is an AMD processor
You are most welcome Keep in mind that your processor being (AMD) should not be an issue. As long as it meets the McAfee System Requirements (Speed). I know because I have a system running one
Are you certain you have the required Microsoft Visual C+++Redistributables (X86\X64) installed?
I agree with Sanjay (Tier Tech 2.5) that your quickest resolution would be to contact Technical Support. Having said that, have you tried using another Browser? In addition look at these suggestions Unable to continue installation. Error 0 (with Windows Security Suites)
Just thought I would add that...
All the very Best,
Ooops ! Two replies are better than one ! Sorry Mate.