Unable to load Ninja Home › Forums › System Ninja Support › Unable to load Ninja This topic has 1 reply, 2 voices, and was last updated 8 years, 1 month ago by Shane Gowland. Viewing 1 post (of 1 total) Author Posts March 3, 2017 at 3:36 pm #11928 Shane GowlandKeymaster Hello, it sounds like you’re getting the ‘.NET 3.5 required’ message when installing. If you follow the prompts, you should be able to download the required software from the Microsoft website and continue installing System Ninja. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In