I am using Solidworks Standard 2015 SP 4 and I am experiencing very poor performance when I attempt to create a new sketch. Solidworks can open previously made assemblies that are fairly complex and I can add in new components without any problems. I am able to create a new sketch and select a plane, however as soon as I go to draw using any of the sketch tools Solidworks either takes a couple of minutes to process it or it freezes completely. Does anyone have any advice/help/solutions for this issue?
I'd ask for your system specs but since this is only when starting a sketch in a Part I'd guess the problem is a corrupt Part template. Is this a custom saved Part template, or the default one from SW? And if it's a custom template have you tried starting a new Part with the default SW template to see if you still have the same issue?