I recently bought a used computer . I am a taxi dispatcher and use 8x8 to answer phones through my pc. SEP has managed to block 8x8 and I could not allow it .SEP kept reopening , and blocking it . So I disabled it . { i don't know how } I was under extreme pressure to get things up and running so I could work. Having said that. Now, I cant open it at all. cant uninstall it from PC, can not update it to find the missing file through MS {file SEP64.msi missing }I only want it off as it took control of everything and I couldn't change a thing it would revert to starting settings for previous owner, { picture in your mind if you will, the movie that everything electronic takes control of humans and changes their life for the worst } been at this off and on for 4 days Symantec want a serial which I have no access to . Or keys .