I've noticed a few comments online asking about drivers for Z87 platform for Windows XP so I've decided to upload the version that works properly.
We've also just received our copy of GTL2.0 (GIGABYTE Tweak Launcher software) just in before the weekend for most. It still has a little bit of functionality to be added but we figured the key ones would be useful for you to use in the meantime.
GTL2.0 download download link & New Version with timings.
Intel ME driver for Windows XP (Z87 chipset)
Windows XP Z87 OC Buttons driver
Windows 7 & 8 Z87 OC Buttons driver