Make sure you have plenty of available free disk space on the volume on which you are decompressing the zip package.If you use a MAC, we recommend decompressing using this free app.You can also use WinRAR if you have this already.If you are using a WINDOWS system to extract the files please start unzipping the package using the app 7 zip.Do NOT copy the zip file somewhere else, and then unpack it.Unpack the zip file on the SAME drive/volume/computer that you downloaded the file on.