This message was posted on behalf of Intel Corporation
HSL: Thank you very much for contacting the Intel® Chipsets communities. We will do our best to provide the information you are looking for.
In regard to your inquiry, the Intel® RST versions available in our web site do not support the combination of hardware: B75/Z77 and software: Windows® 10 that your platform contains. There are some computer manufacturers that might have a version customized by them that supports this system configuration, you can always get in contact with them to confirm that.
Same thing with the management engine firmware, we recommend to visit the web site of the manufacturer of the board or manufacturer of the computer in order to get the proper firmware version for your system.
Any further questions, please let me know.