Question

Is it safe to have it on my computer?

Answer 1

Online information and users opinion state that this is malware. In this case, no, it's not safe to have it installed in your computer.

Download and run a copy of Combofix and then wait for complete removal. At the end of the scanning procedure, a log will be presented with the items removed.

Answer 2

No, it is a threat that can causes damage to the system. So, it is not wise to keep this program. To remove it completely, try this detailed removal guide in here: http://www.pccaretips.com/blog/tips-to-get-rid-of-ads-by-smartpurple-easily.html