I am getting this error while installing all drivers and software from that 1 tool. It tells that Intel Edison IoT XDK, Integrity checking failed.
Here is a snap:
Did you run the installation once? I've never received this error so maybe there was a network error that corrupted one of the files the integrated installer was trying to download. Run the installer once again and report your results back to us.
If this fails you can always install the XDK manually https://software.intel.com/en-us/getting-started-with-the-intel-xdk-iot-edition IoT - Getting started with the Intel® XDK IoT Edition | Intel® Developer Zone