Cannot Play Games in Fullscreen

Okay, so I launch SA today, I get through the EAX shit and NVIDIA and it ejects me back to the desktop, and then I try and get it back up, ejects me back again, I mean come on! I tested with other games as well, same issue, can only play in Windowed mode, nobody likes that!

System Things:
Windows 7 Home Premium Service Pack 1
Intel(R) Core(TM) i3-2350M CPU @ 2.30GHz 2.30GHz
6.00 GB of RAM
64 Bit Operating System

Graphics:
Intel(R) HD Graphics Family
Approx. Total Memory: 1696 MB

TURN OFF WINDOWS DEFENDER (try this first, easiest and will make it work again 80%.)
OR:
Method 1: Alter the hardware acceleration:
If updating the Video card drivers does not completely eliminate any graphics rendering problems, then it is a good idea to turn off the computer’s hardware acceleration. Not all drivers support disabling hardware acceleration. To disable hardware acceleration on your computer, perform the following steps:
1. Click Start, select Control Panel, click Appearance and Personalization, click Personalization, click Display Settings, and then click Advanced Settings.
2. Click the Troubleshoot tab, and then click Change Settings.
Note: Change Settings will be disabled if the graphics card drivers do not support disabling hardware acceleration.
3. Move the Hardware Acceleration slider until it is one notch to the right of none. This is the basic acceleration setting.
4. Click OK twice, and then close the window.

Method 2:
Update your DirectX to the latest available version. Keeping your DirectX up-to-date helps eliminate conflicts, as well as helping your games run as well as possible.

The latest version of DirectX is available for free download.
Here is a link to download the DirectX:
http://www.microsoft.com/downloads/details.aspx?FamilyId=2DA43D38-DB71-4C1B-BC6A-9B6652CD92A3&displaylang=en

Method 3:
Update Flashplayer and Java Flash:
I would recommend you to update the Adobe flash-player from the website below:
http://get.adobe.com/flashplayer/
2. Also download and install the Java Flash from the link below:
https://www.java.com/en/


I hope that works.

I have DirectX 11, but maybe those games don't support that version or am I being an idiota?
It works now 'cause I recently started my PC, so, Idk what's happening.
It always happens after I uninstall or install programs.

Okay, so it was just a minor problem, no need for my pro solutions..
Glad it works now.

Guess it's fixed, PM me if you want it re-opened again.