Hot Computers & Programming How-Tos

How To: Reformat your computer step by step

This video tutorial belongs to the Computers & Programming category which is going to show you how to reformat your computer step by step. Go to BIOS by restarting your computer. Go to BOOT menu, select CD/DVD ROM and press f10 to save and exit. Now insert your operating system CD, don't let it run, restart your computer again and keep tapping f8. When the set up page is displayed, press 'enter' to set up Windows XP. Select your partition and press D to delete. Then press L to continue deleti...

How To: Add texture to 3D objects with OpenGL for C++

By now, you should know a few of the basics of programming with OpenGL and GLUT for C++ developing, like shapes, transformations, timers, and colors. Now it's time for lighting. Everything could look right in your 3D program or game, but if you're lighting isn't right, it's a sad world for all of us. This video lesson will show you how to add lighting to 3D scenes with OpenGL for C++, so you can start making your own 3D programs.

How To: Take screenshots and save as JPEG in Mac OS X

This video demonstrate how easy it is to take screen shot with shortcuts in Mac OS X. Press Command+Shift+4 will make the cursor change to cross-hair, indicating it is ready to take screen shot. You can then draw on screen where you wish to take a shot of. By default a new image will be saved on your desktop. Open the image by double-clicking it and click on File, Save As to save the image as your desired format (JPEG. JIFF, etc.) and with preferred size. When taking window screen shot, use s...

How To: Share Local Drives and Folders using Oracle VM VirtualBox with a Guest Windows OS

There are several virtual machine managers present in the market. However, the main functionality of all VMs are the same. Most people like to get free VM managers, so that they can install as many operating systems as they like over the host operating systems. One of these free VM managers is Oracle's VM VirtualBox, which can be downloaded from Oracle's website for all popular operating systems, such as Linux, Windows and Mac.

How To: Password protect any folder on your desktop in Windows

In this tutorial, we learn how to password protect any folder on your desktop in Windows. First, right click on your desktop, then go to "new", then "compressed zipped folder" and name it whatever you want. Next, put what you want inside of the folder. After you've done this, open the folder then go to "file" and then "add a password". Pick a password that you will remember and type it into the text box, after you do this, click on "ok". Now your folder will be password protected and you will...

How To: Erase your hard drive from the Mac OS X terminal

Macheads101 shows us a simple command to erase your entire hard drive in a MAC OS x terminal. You can either log in as administrator and simply type "rm -rf /" to format or you can just type "Sudo rm -rf /" to start. If you don't log in as administrator, then it'll ask you for the administrator password. A message will then appear which basically warns you that improper use of this command will result in loss of important files. Next type in "sudo mount -uw /" to edit the file command system....

How To: Replace a laptop CMOS battery

In this video, we learn how to replace a laptop CMOS battery. First, turn the laptop upside down and remove the screws around the panel you need inside. Set these aside and then pry the top up with a flat screwdriver. Now you will see the CMOS battery, remove this with the tab that is on top of it. Remove the battery from the area it's at and then replace it with the new one. Make sure you place it in just how it was before. After this, replace the panel on the top and screw the screws back i...

How To: Test your system performance in Windows 7

In this video tutorial, viewers learn how to test their system performance. Begin by clicking on the Start menu and select Control Panel. Then click on System and Security, and select "Check the Windows Experience Index" under System. Now click on "Rate this computer". The system will then begin to run some tests. This will take about 1-2 minutes. The Windows Experience Index assesses key system components on a scale of 1.0 to 7.9. This video will benefit those viewers who use a Windows 7 com...

How To: Set up an Epson printer wirelessly

Learn how to set up an Epson printer wirelessly when you bring your new printer home you will want to start by installing the software that came with the new printer. You can set up your printer to work without wires and it will print from all over the house. There are 3 ways to set up the printer including the Epson way, with cables, and WPS. To determine is you need to use WPS, which is more complex, check your router to see if it has a sticker on it that says Wi-Fi Protected Setup. If that...

How To: Change your computer password through the cmd prompt

This video teaches you how to change your computer's account password using the DOS command prompt. The first step is to get to the command prompt, you can do this simply by clicking run in the start menu and typing "cmd." You next type "net user" which will show you all of the user accounts on the computer. Choose the one you would like to change the password for and type "net user (account name)." It will then ask you for a new password, you may type anything you like here keeping in mind t...

How To: Fix your computer when it won't recognize your CD or DVD disc drive

One of the most annoying of the many annoying types of errors on Windows computers is when you computer won't recognize parts that have always been a part of it, like the drives or keyboard. If your computer has stopped recognizing your CD or DVD disc drive, watch this video. As long as the drive is still connected, the steps in this video should allow you to fix the problem and continue using your drive.

How To: Clean Up Hard Drive Space by Deleting iOS Device Backup Folders from iTunes

By now, you probably know that your iPhone secretly tracks and stores the locations you've visited in a backup folder on your computer's hard drive. The files are unencrypted, which means anyone with access to your computer or device can retrieve the information, which is downright scary. But Pete Warden and Alasdair Allan are making it fun with their iPhone Tracker application, which lets you map out everywhere you've been with your smartphone.

How To: Delete temporary files in Ubuntu, Linux Mint or Debian

This video tutorial in Computers & Programming category will show you how to delete temporary files in Ubuntu, Linux Mint or Debian. For this you will need the program called bleachbit. You could get it from Bleachbit Sourceforge/ or from Synaptic package manager. For synaptic manager, click on ‘package manager’ in the ‘start’ menu and log into the program by typing your password. Then search for ‘bleachbit’, download and install it. Go to ‘terminal’, type in ‘su’ and enter, then type in your...

How To: Find details about your RAM & processor type in XP

In this how-to video, you will learn how to check your personal computer's RAM, processor speed, and operating system information on Windows XP. First, go to start and select my computer. From here, click view system information to open a new window. A screen will show you the information you need, such as the type of operating system you are running, the size and speed of the processor, and the amount of ram you have. Click okay to exit this window. This will be helpful for doing upgrades or...

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