If your Mt4 crashes I have fixed it almost every time going to the profile folder and editing the file lastprofile.ini open it, and type default in place of what ever profile name it has then save and close it. Restart MT4. If there is a profile problem with a chart or EA going back to default will allow you to start MT4. Then from the profile window on the platform try to use your last profile you were using. If that crashes there is something wrong there. Restart MT4 again and choose a previous profile and then you will have to rebuild to what you were using. I save profiles before I add anything new (like doing a recovery point in windows) that way if some bad mojo happens I can can go back to that profile and have minimal rebuild. This has saved my backside numerous times.
Hope this helps.
ej5
Hope this helps.
ej5