How to check the operating system installed on your computer?

Here is the answer

Follow these steps to check the operating system installed on your computer:

1. Click “Start” and go to “Run” to launch the “Run” window.
Or
Press the “Windows” and “R” keys at the same time to launch the “Run” window.

2. Type the following on the “Run” window and click “Ok” button:

Winver

I’ve added the screen shot here.

3. You will see the “About Windows” dialog box on your screen, the operating system will be listed on this dialog box.
I’ve added the screen shot here.

How to check the version of the Internet Explorer on your computer?

Here is the answer:

Windows Vista / Windows 7:

1.       Click “Start” and type the following in the “Search programs and files” text box:

Internet Explorer

2.       You will see the “Internet Explorer” item in the list, click on it to launch the Internet Explorer window on your screen.  (I’ve added the screen shot here)

             

3.       When the Internet Explorer window is on your screen, press the “Alt” and “H” keys on your keyboard at the same time, you will see the “Help” menu item on your screen. (I’ve added the screen shot here)

                

4.       Click the “About Internet Explorer” option in the list, you will see the “About Internet Explorer” dialog box, the Internet Explorer version will be listed on that window. (I’ve added the screen shot here)

Windows XP/Windows 2000:

In older version of Windows (E.g. XP and 2000), perform the following step to launch the Internet Explorer window:

1.       Click “Start” and go to “Run”.

2.       Type (or copy and paste) the following on the “Run” window and click the “Ok” button:

C:\Program Files\Internet Explorer\IEXPLORE.EXE

          I’ve added the screen shot here

3.       Once the “Internet Explorer” window is on your screen, follow the above mentioned steps 3 and 4 for the “Windows Vista/Windows 7” OS to check the Internet Explorer version on your Windows XP or Windows 2000 OS.