It's a copper shim, they are used to full the gap between a cpu/gpu die and a heatsink.
These were used on some HD7950/7970s with aftermarket coolers or water cooling blocks.
I can't install/use this update on any of my pc's/laptops (5 all up), they all get stuck at 100% installing windows updates or the login screen with the loading symbol.
Same thing happens with the KB3140768 update.