Definitions Update Error in General Questions Posted February 23, 2014 I have the same problem. My machine is windows 7, 64 bit. I have the free version of SuperAntiSpyware 5.7.1018. I keep getting definitions update error. Authenticating Connection is okay - I get a green tick and the word "complete" Checking for definition update is okay - i get a green tick and the word "complete" Downloading Updates (mirror 1) is okay - i get a green tick and the word "complete" Please note Downloading Updates (mirror 1) happens 3 times for me. At the end, I am told: Definitions Update ERROR - failed. This section is all in red. This has been going on for me for the past 1.5 hours.