Occasionally, you would have to take a screenshot of your computer for us to look into the issue that you're having.
 
To take a screenshot on your Windows machine, please refer to the steps below:
 
Windows 8/8.1:
 
1) To take a full screen shot of your display, press the Windows Key + Print Screen button . 
 
2) The screenshot should now be in your Pictures / Screenshots folder.
 
OR
 
To take just the screenshot of the selected window / folder 
 
1) Press Alt + Print Screen button. This will save the current screenshot into the clipboard to be pasted later. 
 
2)  Press Windows + Q and search for Paint.
 
3) Press on Control + V and your screenshot will be pasted into Microsoft Paint and you can save the image to anywhere you desire. 
 
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Windows 7 or XP:
 
1) Press the Control Key + Print Screen button on your keyboard for a full screen shot of your display. Alternatively, you can use Alt + Print Screen button to take just the screenshot of the selected window / folder.
 
2) Windows XP - open Microsoft Paint by going to Start -> Run -> type in mspaint and then click on OK.
    Windows 7 - open Microsoft Paint by going to Start and then type in mspaint in the search bar and then press on Enter.
 
3) Press the Control + V in Microsoft Paint and your screenshot will be pasted.

4) Save the image to anywhere you desire.