I've just received the following response from Gigagbyte Technical Support:-
"Thank you for your kindly mail and inquiry. About the issue you mentioned, please try the following steps:
1. Please Load Optimized Default BIOS setting.
2. Please Please go to Control Panel>Programs>Programs and Features to remove Easy Tune6, restart OS and reinstall this utility from motherboard driver disc or our website.
3. Please make sure your OS is genuine version released by Microsoft and update to latest service pack. Since we found some users with cracked / modified Windows OS might show up the error message or abnormal behavior with ET6 / DES / EES, we need to confirm if you use genuine and non-modfied Windows OS or not. If you use some Windows version which is crack or modified, we would suggest you try to install genuine and non-modified Windows OS and try it again.
However, if the problem still occurs with genuine OS, we suggest you can back up your data and reinstall Windows 7. And then please install Easy Tune6 in a clean installation to test again.
Best Regards,
GIGABYTE"
I should point out that my question to them was much the same as I posted here:-
Purchased new PC on 27/12/2012 from PB Tech.
Installed drivers and utilities from the "Intel 7 series Utility DVD" that was provided with the box.
On 3/1/2013 received "Open driver handle error" and error code 0x80040707 from Easytune 6.
Uninstalled the utility but when I tries to use the Utility DVD to re-install I received the same error.
Tried other utilities but all gave same errors.
Download latest utilities from Gigabyte but the install gives the same errors.
Found nothing helpful in the Gigabyte forums, or elsewhere online.
Would welcome any help and.or advice you can give.