You can go to control panel > add remove programs and check from there.
Or
Go to %systemroot%\Microsoft.NET\Framework folder. The following folders contain the released versions of the .NET Framework:
To determine which versions of the .NET Framework are installed on a computer, follow these steps:
refer related links section
One can find which version of Linux is running on a computer by using the LSB tool. One may need to download the LSB tool because it isn't installed by default on every computer.
To find out if you are running 32 bit or 64 bit you will need to press the Start Orb, go to Computer and press View System Information. It will tell you what version you are running there.
Click on the Apple menu and select "About This Mac". It will show you there. Also, when the computer starts up, it tells you what version of the OS you are running.
check version in C:\WINDOWS\Microsoft.NET\Framework
There is one very simple way to find out if your computer is running the 32- or 64-bit version of Windows Vista. First, navigate to your start menu. Find the "Computer" icon and right-click it and then click the "Properties" option. The version of Windows you are using will be next to the words "System Type".
show?
Windows itself does not depend on the .Net framework. However, a large number of programs do depend on it, including the Catalyst Control Console which is a part of the ATI / AMD video driver. Most programs that require one version or another of the .Net framework will also include the necessary install package, so you can find that you suddenly have the .Net framework when you didn't install it. Note that there are several different versions of the .Net framework. A program written to use the 1.1 version of the framework would not work with the 2.0 version; but programs written to use the .Net framework 2.0 or later will work fine with any later version: a program written for .Net 3.0 will work fine with .Net 4.0, for instance. The current version is 4.0 and 4.5 will be introduced shortly.
You can find the BIOS version of your video card by pressing DEL immediately your computer starts.
Every computer has an operating system. You have to have the right version of Office for your computer. The requirements can be found on the box. Once you know what operating system you have, then you can find the appropriate version for your computer.
its pretty obvious
A person can tell if a Ram is affected or not by running a virus scan on the computer.
You can find out what is running in the background of your computer. Check out the processess and that will show you what is currently running. You can find the processes by holding down the following three buttons all at the same time, ctrl, alt, and delete. This will bring up a box where you can check to see what is running.