Blog Submission Rainbow Optimum Technologies developed a software to fix computer problems November 18, 2017 View this post on Instagram Clean those JUNKS out of your computer with Rainbow – PC Smart Cleaner Software. Download the Software at www.roptimumtechnologies.com A post shared by Engineer Yakub (@engineer_yakub) on May 2, 2017 at 7:05pm PDT Moderator See author's posts Continue Reading Next @bukolarodoye Nigerian US based Vlogger shares beautiful picture of herself and husband on Instagram