go to the windows start thing on the bottom left.
search " %appdata% " press enter
delete tekkit launcher folder
open tekkit launcher and re login etc
hopefully that works for you :D
hey i thought that the video was really good it was entertaining and all that .
To make it so that you can have it on a higher video setting etc and less lag (its not laggy) you could use:
game booster: http://www.iobit.com/gamebooster.html (its great i think u can record from it as well).
Task manager: just us it to end processes that are running in the background.
Ccleaner: http://www.piriform.com/ccleaner (Ccleaner doesn't have anything to improve the videos but u can stop certain things from starting on start up so u don't have to use task manager as much).
hopefully this was helpful information.
otherwise i enjoyed the video and hope there is more coming soon
one thing that could be added could be another person? i would love to come and help out if i can just email me at [email protected]