Security Shield

Security Shield is pretty straight-forward to remove. You can either use the serial number :

64C665BE-4DE7-423B-A6B6-BC0172B25DF2

Or you can remove it the old-fashioned way. Start by renaming the taskmgr so that we can kill the process. I renamed mine to "explorer.exe" and it seemed to work well enough. find and kill the process:

Run a quick scan with your favorite anti-malware utility. (MalwareBytes' is mine) You are all set. This one only left 1 file in "%userprofile%\Local Settings\Application Data\<random.exe>" I found no registry entries or anything weird in startup. Here are some more screenshots: