Windows 8.1 and AMD Radeon HD 7670M

Question

Since the Windows 8.1 update I have a really stupid problem on my Pavilion g7-2210sm. (http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03555012&tmp_task=prodinfoCategory&cc=us&dlc=en...)
All of the games that were on my PC - Skyrim, DARK, TW: Rome 2, PES 14... - all run at a maximum of 5 fps, obvious sign that only Intel GPU is used. Changing from Power Saving to High Performance in CCC is as useful as hitting the notebook with a hammer .
HP did put a driver for windows 8.1 on support page but what that driver does is that it only helps windows indentify my dedicated gpu and then ignore it completely. I should also say that this driver is not really win 8.1 but rather just a copy of driver made for win 8 almost a year ago!!
To test things i formatted my system hard drive, installed Win 8 Pro, installed all drivers from support page then installed games again and all worked fine, uninstalled games, updated to Win 8.1 Pro, installed the (useless) driver, installed games and back to 5 fps.
My question is will HP ever produce some kind of real Windows 8.1 driver or should i just go sell my notebook and buy from some company that actually has product support that lasts longer than 2 weeks?
HP Pavilion g7-2210sm

Answer 1

Dear Friends,
I have HP Envy 6-1106TX. I'm Official win8. Last week after frequent pop ups from windows store that update to win8.1, I finally clicked OK and updated the my genuine windows 8 to 8.1. Installation is smooth and after that my notebook remains very hot. Before update and after updates are as follows;
Battery backup-----------> B: 5-8Hrs------> A: 2Hrs
CPU Temp (Idle) ----------->  B: 50C------> A: 60C
CPU Temp (Load)-----------> B: 75~80C -----> After: 90-100C
Although CPU performance is little down. while gaming, a little laggy. (I don't game much)
Sometimes got stuck. while on Win 8 never got stuck.
I think that the problem is that both GPUs are active at the same time. That's why Note Book got very very hot and consumes a lot of battery. 
Device Manager is not able to detect my ATI Readon 7670M, it's just showing ATI 7600.
I think drivers are not competible and that's why there is all that problem.
I have tried solution that posted by victorx1, but still the problem was same.
Although windows 8.1 features are very impressive but I have to go back to Windows 8 because of that problem.
After degrading to Win 8. everything is normal.
Any one will help me, is there any official drives updated by HP to solve this issue?
or they are just ignoring us and we have to stuck with windows 8.