Did it offer driver v4963?
Latest driver for your system is here: Download Intel® Graphics Driver for Windows 7*/8.1* [15.36]
You would have to upgrade to Windows 10 to get further driver updates.
4th Generation Intel® Core™ Processors and related Intel® Pentium® Processors/Intel® Celeron® Processors:
Windows® 10, 64-bit and 32-bit only
15.36 (HSW systems using Windows 7, 8.1)
This Branch has reached end of maintenance
HSW systems can upgrade to Windows 10 and use the 15.40 Code Branch.
sounds like the issue i also have which is not out fault but im my case the fault of the given driver update not having an entry inside to match my HD4600, see my thread as well.
heres a pic of their driver updates .inf file showing entries for my HD4600 and my older currently installed intel update showing a totally different ID for the HD4600 which is why mine never updates, automatically or manually, im guessing you might be the same as its not just my thread and yours, ive seen others with the same "not compatible" issue.
My ID for the HD4600 = iHSWD_w81
ID's in their update package for the HD4600 = iHSWGT2D and iHSWGT2M
Im guessing this is why mine wont update as my ID doesnt match the ones in their update package, maybe you can check your own ID in device manager and compare to the entrys in their driver update .zip file you are given, chances are they are different when they shouldnt be, if this can be fixed with just editing in my ID into their .INF file then thats great but i dont want to do it without an ok incase i make matters worse.