Windows 10: Quickly close all windows at once

I deal with personal information and am subject to privacy laws. When someone walks in to my office I need to quickly close all the windows on my computer to ensure no private information is inadvertently revealed. How do I close all windows at once? One tech suggested ALT + Tab but that requires clicking on every single window and I often have a dozen or more opened at once so this won't work for my purposes. I also am aware of the option of clicking the menu bar in the lower right hand corner but I have 3 screens and it's only on one them. So sometimes figuring where to click and doing

:)

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

Unlocked Realtek HD Audio Drivers Windows 7 & 8 (With Dolby Digital Live and DTS Interactive)

DTS supported natively by Windows 8/8.1 and it should work on windows 10 too just DDL require to unlock your driver .

 

How can I quickly close many Windows/Programs?

I find that the fastest way to natively achieve this is like this:

1. Click on the desired program in your task bar
   
2. alt + F4
   

This is quicker because you close precisely the programs you wish to close where as alt + tab-ing through your programs forces you to step over unwanted programs causing you to endure more time.