what is the other way to activate the autocad 2015, when clicking the patch always showing "you need to apply patch when license appear", i did all like running the keygen as administrator, UAC also off. what i do more to fix and activate my software. i cannot use it. please help me.

So we are talking about activating an illegal copy of AutoCAD?

Did you solve your problem yet?

I have a piece of advice for anyone who has tried to get an illegal copy of AutoCAD to run and has encountered problems in doing so.  Don't expect to get any help from users that paid good money to legally buy the program.