Windows 7 - Intel HD 4000 Install Error

For the past few days I've had trouble installing HD 4000, I've been reading up on these Intel forums also, haven't found a solution yet,

So I'll get into my problem,

Last week I factory reset my computer after I corrupt my Adobe files (long story) but now everythings running grand but I can't update my Intel HD 4000 Graphics driver from 8.15.10.2752 too 15.33.8.64.3345

I use Intel Drive Update Utility, which gives me the 15.33.8.64.3345 then I download it,

But then after countless times trying to install it after getting multiple errors such as:

"Your computer does not meet the minimum requirements"

Now I am getting

"The driver being installed is not validated for this computer. Please obtain the appropriate driver from the computer manufacturer. Setup will exit"

Obviously that's stating I should turn to my laptop manufacture as suggested by a few Intel people on the forums,

My laptop model is Toshiba C855: 1J2

But on the Toshiba website I only manage to obtain the 8.15.10.2752, but back then I use to be able to update my driver frequently using the Intel Driver Update Utility without having problems and I was on version 15 or something,

Please Help,

                   Yours sincerely

                                                     Morgan,