Switchable graphics and video drivers for 15R SE 7520

Hardware Id of my graphics card:  PCI\VEN_8086&DEV_0166&SUBSYS_05721028

is present only in the package:

7520_Video_Driver_6TD5X_WN_8.982.6.0_A03.EXE
  AMD Radeon HD 7730M Graphics Driver for Windows 8.
  Release Date: 2/21/2013
  Version:           8.982.6.0,A03 See Previous Versions
  created:           August 24, 2012

files: CE145860.inf, C8145860.inf contain:
  %IIVBGM0ML_SG% = iIVBM1ML_PROXY, PCI\VEN_8086&DEV_0166&SUBSYS_05721028 ;-
  %IIVBGM0GT1ML_SG% = iIVBM1ML_PROXY, PCI\VEN_8086&DEV_0156&SUBSYS_05981028 ;-
  %iIVBGM0ML_SG% = iIVBM1ML_PROXY, PCI\VEN_8086&DEV_0166&SUBSYS_05721028
  %iIVBGM0GT1ML_SG% = iIVBM1ML_PROXY, PCI\VEN_8086&DEV_0156&SUBSYS_05721028


In the package:
Video_Driver_VPDFR_WN_9.17.10.2843_A03.EXE
  Intel HD 3000/4000 Graphics Driver, supported on Inspiron 5520 and 5525 and Vostro 3560, Windows 8,
  Release Date: 2/19/2013
  Importance:     Recommended
  Version:           9.17.10.2843,A03
  Created:          9/6/2012

the closest to hardware id of my Intel card is, in the file kit47658.inf is:
  %iIVBGM0%         = iIVBM0, PCI\VEN_8086&DEV_0166&SUBSYS_05781028;
  %iIVBGM0GT1%  = iIVBM0, PCI\VEN_8086&DEV_0156&SUBSYS_05781028;

- but that is not the hardware id of my Intel card, what explains the error message:
  "hardware does not meet the required minimums"
in the post Unable to install video drivers: 15R SE 7520

That means there was no Intel diver for my card provided until the release of windows 8.1 drivers!

And all the advises to install first the Intel driver was misleading and wrong!



Probably the first release of Intel driver package with the drivers for my card is:

Video_Intel_W8.14_A00_Setup-KK6CK_ZPE.exe,
  Intel HD 4000 Graphics Driver, supported on Inspiron 5520/7520 and Vostro 3560, Windows 8.1.
  Release Date:     10/3/2013
  Importance:     Recommended
  Version:     10.18.10.3277,A00
as the file custm64.inf contains:
  %iIVBGM0%           = iIVBM_w7, PCI\VEN_8086&DEV_0166
  %iIVBGM0%           = iIVBM_w8, PCI\VEN_8086&DEV_0166
  %iIVBGM0%           = iIVBM_w81, PCI\VEN_8086&DEV_0166


The package:

Video_AMD_W8.1_A00_Setup-9NNDW_ZPE.exe
  AMD Radeon HD 7670M/7730M Graphics Driver
  AMD Radeon HD 7670M/7730M Graphics Driver and is supported on Inspiron 7520/5520 and Vostro Notebook 3560, Windows 8.1
  Release Date:     10/3/2013
  Importance:     Recommended
  Version:     13.151.0.0,A00
  Created: 10/2/2013

doesn't reference PCI\VEN_8086 anymore.



The Intel package created 9/6/2012 doesn't work for my card,
and the next one released on 10/3/2013 is not recomended for my system (windows 8 or server 2012).


What I have to install and how to make the switchable graphics working on my laptop ?

I'm asking that after 1 and half year of recommending by Dell support to install the drivers in the way which is not possible.