McRegWiz question

I am not an expert on McAfee so therefore i am going to ask for someone who knows a bit more than me lol

I have looked over the internet and can't find much information on it.

What is happening is that every time i start-up my PC after logging on i am getting a script error for this thats asks if i want to continue running scripts on this page.

Whether i choose yes or no all of my McAfee services seem to work but my pc slows down at start-up so i was wondering if it is possibly linked i have run all scans and there are no viruses so any help would be appreciated.