When connecting drone to computer in connected device settings it states driver error. In DJI Assistant the drone will not calibrate the vision system also says reboot aircraft. Is the driver error causing this problem? Any help will be appreciated

Just to clarify, you're getting that pop up from your computer itself and not the Assistant 2 program, correct? Have you tried a different USB cable? When you try to calibrate the sensors, does it not attempt to start the process at all or does it continue to fail?

On DJI assistant calibration tutorial 3/3 Frame Alignment Error and also says reboot aircraft. Does not give me the option to click calibrate now. I have tried using 2 different usb cables and two different computers. Windows 10

https://www.dropbox.com/s/u10hy2hgmet8deg/2017-04-23%2000.19.57.jpg?dl=0     Aircraft status/ overall status
https://www.dropbox.com/s/uhwqp4kv6fc385t/2017-04-23%2000.31.14.jpg?dl=0      Frame alignment error
https://www.dropbox.com/s/3y3ok7md9n7zngw/20170423_001935.jpg?dl=0      Grayed out calibrate now  
https://www.dropbox.com/s/1vj4towcn9s3wjw/20170423_004714.jpg?dl=0       Information from computer settings               

Did the app asked you to calibrate or not?

Yes it asked me to. I worked on this problem for about 6 hours yesterday. Come to find out that is a signature problem. Watch this video on you tube and you will understand everything i'm talking about. So hard to figure out but so easy. Thanks for this wonderful video on you tube. __How to Calibrate your drone with Dji assistant Windows 10 WILL WORK. READ DESCRIPTION!___ Type this in search on youtube.

Appreciate your feedback, which is very helpful.
Nice to know you got it sorted out, enjoy the flying!