Have done that also. Same thing stays. and also downgraded java and now have the latest so the i've tried the basic stuff already
Redownload resinstall updates. Any other suggestions. Cause i think it has something to do with the .jar file in the folder or java itself.
Because i can run minecraft correctly that's not a problem and the basic server from minecraft running is alsno not a problem the only problem is i cant seem to run the tekkit server.