If the graphics is onboard the motherboard it would likely use more RAM if you add more, but your actual VRAM would remain the same. Onboard graphic generally use a fair chunk of the RAM installed.
My Computer
At a glance
Windows 7 Ultimate X64 SP1Intel i5-2550K, Differing ~4.4-4.8GHz No buil...16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GBASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built Desktop By DataTech
OS
Windows 7 Ultimate X64 SP1
CPU
Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard
ASUS P8Z68-V PRO/GEN3
Memory
16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card(s)
ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card
Onboard Realtek 5-1
Monitor(s) Displays
Samsung P2570HD
Screen Resolution
1920x1080
Hard Drives
Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
PSU
Corsair HX650W
Case
Inwin Dragon Rider
Cooling
Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Keyboard
E-Z Eyes, bright yellow keys with large characters
Mouse
steelseries SENSEI Laser Pro Gaming
Internet Speed
48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus
Norton Internet Security 2013
Browser
IE 10, Opera, Pale Moon if needed
Other Info
4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
Thermaltake Theron (Highly Recommended) + Razer Imperator
Antivirus
MSE
Browser
IE, FF, WaterFox
Other Info
GT Extreme V2 Sim Racing Cockpit + 40" LCD and K/B Mouse stand ▼
Fanatec CSR Elite Wheel + Clubsport V1 Pedals + CSR shifter/7G-H ▼Saitek X52 Pro ▼ TrackIR 5 Pro
Buttkicker v2 Seat Rumbler with Dedicated 5.1 and Sub Woofer attached to frame ▼
=
Bloody Big Grin
What do you mean you "Changed" your Windows. If you ha Win 7 32 bit installed howcome you suddenly have 64bit?
My Computer
At a glance
Microsoft Windows 7 Home Premium 64-bit 7601 ...Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz8.00 GBIntel(R) HD Graphics 4000
Computer type
PC/Desktop
OS
Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Motherboard
ASUSTeK COMPUTER INC. P8H77-M
Memory
8.00 GB
Graphics Card(s)
Intel(R) HD Graphics 4000
Sound Card
On Board
Monitor(s) Displays
Dell 24"
Screen Resolution
1920 x 1080
Hard Drives
(1) INTEL SSDSC2CT180A3 ATA Device (2) ST500DM002-1BD142 ATA Device (3) WDC WD3200AAKS-75L9A0 ATA Device (4) Generic- Compact Flash USB Device (5) Generic- MS/MS-Pro USB Device (6) Generic- SD/MMC USB Device (7) Generic- SM/xD-Picture USB
There is nothing to change. Unless there is an option in the bios, Intel graphics has a fixed amount of shared system memory (what is taken from the physical amount of system memory). The rest of it is what Intel likes to call "dynamic video memory) which is basically nothing more than this,