Trouble shooting NinjaTrader 7 forum can be found here in the community forum section of the the help desk - prior to Zendesk moving the information.
NinjaTrader has Errors preventing installation or uninstallation
Installation Trouble Shooting check list
If you are getting an error message or some other issue preventing you from doing this extremely installation procedure please provide the steps/details you are not able to do or identify the question/problem below so we can understand your issue with installation:
1. Can you login to the website: https://microtrends.co/my-account/
2. Can you find the downloads page: https://microtrends.co/ninjatrader-downloads/
3. Can you locate the download link and click ok?
4. Did the download save to your PC ?
5. Can you run the file?
6. Can you understand and follow the instructions in the installer all the way to the end?
7. Did the installer complete?
8. Did you follow the post installation steps to make sure the installation was successful in NinjaTrader by looking in the Control Center
"File > utilities > remove" ?
9. Is your Anti Virus blocking or deleting the file - can you disable the AV and try again?
10. Is browser allowing the download?