yosemite
I have a late 2013 iMac which has been running on Yosemite for years. In the past few weeks web use on Safari has been atrocious. Latest problem is that whenever I click on a link, I either get a pop up from safari saying do i want the link to open in another link or the link is highlighted in blue. With a 2013 iMac and 2011 microsoft office tools, will i blow up my computer if i update the OS? Are there other options to fix this?