Hot Computers & Programming How-Tos

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: Update graphic drivers with Windows Device Manager

In this video tutorial, viewers learn how to upgrade their graphic driver. This task is very fast, easy and simple to do. Begin by clicking on the Start menu. Then right-click on My Computer and select Properties. Now click on the Hardware tab and click on Device Manager under Manager. In the Device Manager window, select your graphic driver under Display adapters. Right-click on the driver and select Update Driver. Now follow through the instructions in the window and check for any updates. ...

How To: Install a 2.5" hard drive in an external enclosure

In this how-to video, you will learn how to install a 2.5" hard drive into an external closure. This will take only about five minutes. You will need a small Phillips screwdriver. Make sure you use anti-static precautions before performing this procedure. Take off the top of the enclosure. Line the SATA connector of the hard drive to the enclosure. There is a tab on the top part of the enclosure. Make sure that it connects to the other part of the lower part of the enclosure. Take the screws ...

How To: Check If Windows XP Is Activated

Some people might check their activation status of Windows XP by simply right-clicking on the My Computer icon on their desktop, then clicking on Properties. It opens up a new window with General tab showing some basic information about your PC, like system info, registered to, and computer hardware. However, it does not actually tell us complete information about the system, like whether or not your current copy of Windows XP is activated or not. To check the complete details about your Wind...

How To: Detect hackers with netstat

Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics. It is available on Unix, Unix-like, and Windows NT-based operating systems. This video tutorial presents a basic introduction to working with the netstat tool. Determine whether you've been hacked with this how-to.

How To: Permanently delete previously deleted files on a Mac

The guy in this video shows us how to permanently delete files on a Mac. First one would click on your desktop so the finder pops up and one would go to "utilities" and click "disk utilities". Next, one would click on the disk which they would like to clear, then click "erase" and then click "erase free space". After clicking, a box will pop up asking if you want to erase 0 times which clears the disk 1 time, 7 times which clears the disk 7 times to delete unwanted files, or 35 times, which r...

How To: Hack the computer password for Vista

This video shows how to hack the computer password for Vista. We can change the computer password without knowing the actual password. First go to Start menu. Type in the Search "cmd". Then right click on that folder and run as administrator. Then we get a pop up. Type in their net users. Pick the user that we want to hack into. After picking the user type in net user the username and then * . After typing this hit enter key and it should say the command completed successfully and we have to ...

How To: Clean your laptop's keyboard by removing the keys

In this video DavidDaGeek shows how to clean your keyboard by removing your keys, but to be careful when doing this. Put your finger underneath a key and just pull it off. Don't break the piece that holds the key in place though! he starts at the shift key and works to the left with the ? being next. Then remove the hair or dust with your fingers. Don't remove them all at once because you might forget what order they go in. To put the key back in, put it in its spot, and click it back in. You...

How To: Remove noise from audio files in Ubuntu with Audacity

In this tutorial, we learn how to remove noise from audio files in Ubuntu with Audacity. To do this, you will first open up Audacity and then open up your audio file. To get rid of the noise, you will highlight the area with just the noise, not anything else. Now, go to 'effect', 'noise removal' from the top toolbar. Now, click 'get noise profile' and right after this you will need to select the whole file. After this, go back to the noise removal toolbar and click 'ok'. From here, you will s...

How To: Import pictures and photos into Keynote presentations

Keynote can make your photos and images look amazing. It also makes them easy to work with. If you have, for example, four different file formats of different images, rather than dragging each of them into a presentation and trying to create a slide, you can grab all four and drag them right into the slide navigator and have full image slides ready to go. Just press play. For more, watch this friendly OS X tutorial.

How To: Change your IP or MAC address

The video is about how to change the IP address. MAC address is the unique identifier a site of the most network adapters. MAC address is used to determine what IP address the computer will have and one way to change the IP address is by changing the MAC address. The method is only applicable for the windows systems and for the MAC systems you need to look at the link provided. In Windows in the start menu, type cmd in the run/search box, which will launch the command window. Type ipconfig/al...

How To: Build a BartPE bootable CD

Steve Lee Ignacio explains the procedure to be followed to build a Bart PE Professional Rescue CD. He says that the basic requirements for completing this process is a Windows XP Pro or Home CD, a Bart PE builder, a Windows Computer, a program to burn .ISO files and a CD burner. He then explains the various steps involved in building the Bart PE CD, the first of which is to download latest version of Bart PE Builder using a search engine like Google. Then he explains the second step which is ...

How To: Remove Windows Genuine Advantage from Windows Startup

1. First go to START -> ALL PROGRAMS -> ACCESSORIES -> SYSTEM TOOLS -> SCHEDULED TASKS.2. Right click on WGA setup icon and select PROPERTIES. Find where the WGA files are located.3. Copy the location form the window appears in the previous step and paste it in the address bar of MYCOMPUTER.4. Delete the files found in the respective location.5. After deleting the files, now delete the WGA found in the scheduled task.6. RESTART the windows and windows genuine advantage ll not disturb again.

How To: Take a picture off your PCs screen

You don't need a camera to take a screen shot of your computer. In fact, a camera would probably give you an extremely blurry picture! There is a special button on your keyboard called Prnt Scrn. All you need to do is press that button. The screen shot of your desktop is then stored onto your clipboard. To get it off the clipboard, you need to paste it in paint. Open it up, go to edit and click paste. Then go to file and click save as to save your file. Choose where you want it to be saved, n...

How To: Install Ubuntu in a RAID 0 array

RAID, or Redundant Array of Independent Disks, lets you divide and replicate data among multiple hard disk drives for information storage security. This video tutorial demonstrates how to install Ubuntu in a RAID 0 array. Before starting, you'll need at least 2 hard drives and an Ubuntu alternate installation CD. RAID 0, or striped disks, let's you install an operating system, such as Ubuntu, on a partition, while using others for data storage, as illustrated in this instructional segment.

How To: Use the ATI Overdrive utility to overclock your ATI AMD Radeon Graphics Card

Are you a speed freak? Not getting the fps rate you want in your favorite 1st person shooter? If you're answering yes, then it's time to get overclocking. This step-by-step video shows you how to use the ATI Overdrive utility and the MSI Afterburner utility to overclock your ATI AMD Radeon Graphics card to push those pixels to the max! The MSI Afterburner utility works with both Nvidia and ATI cards.

How To: Begin using a USB flash drive

In this tutorial, we learn how to use a USB flash drive. First, go to "my computer" through your desktop. Next, you will see a device that says "flash drive", which is in drive "d". When you unplug your USB device, the drive will disappear. When you plug it back in, a new window will appear asking what you want to do with drive "d". Now, go to your documents folder and if you want to copy one of these files, right click and choose the copy option. After this, you will be able to paste your fi...

How To: Set-up a (dlink DI-524) wi-fi router

First, you will need a surfboard cable modem. You will need a wireless router with an unscrewed antenna and a power cord. Make sure you have two ethernet cord and a computer. First, take the surfboard and screw the cable into it; make sure it is completely tight. Next, take the router and one ethernet cord. Look for the spot that reads WAN; plug the ethernet cable into this spot. Take the other end of the ethernet cable and plug it into the port on the surfboard.

How To: Run Windows programs on a Mac using WINE

Macheads demonstrates how to install wine on mac. What is wine? Wine allows you to run and install windows program on Intel based machine. This program will work only on Intel and wont work on power PCs,unfortunately. First, we have to install macports which is something similar to installing unix programs on mac. The following are a bunch of requirements in order to install wine - an intel mac, admin account, X code installed, X11 (which comes mostly with intel macs). First of all we have to...

How To: Change the time display from military time in Windows

This video will show you how to change your time from military time to the 12 hour time scale on a Window's computer. After being infected by a virus or if you accidentally changed the time on your computer, you can easily change the time display on your computer screen back by following the easy steps in this video. You will first have to go to the Start bar and find the Control Panel. From the Control Panel, find Regional and Language Settings and choose to customize your regional settings....

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...

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