Dear all,
My windows 8 was upgraded to windows 8.1 automatically. Unfortunately, registration code of CAD programs such Autocad and Ecotect were removed. I tried to install Ecotect but I faced with the following error. Please help me how I can install Ecotect again. I have tried all instructions which written in the forum to solve it but I could not deal with.
Thanks in advance in any help and consideration.