Use keyboard as a mouse if mouse or touchpad is not responding or working.

Use keyboard as a mouse if mouse or touchpad is not responding or working.
You can done everything by using mouse. But the mouse are not worked properly or mouse are not available. Then what to do?
in this situation you can use your keyboard as a mouse It is very simple method and you can access your keyboard like a mouse.
To activate this just press
Alt+Left shift key+num lock
now you can access your keyboard as a mouse.
navigation keys for keyboard
5-select
2-move down
8-move up
4-move left
6-move right
for double click,just press the plus symbol(+)
for right click,just press the minus symbol (-)
to deactivate just press same key (i.e., Alt+Left shift key+num lock)
Thats all now you can use your keyboard as a mouse at any time.share this trick and write your comments

Make Your Own Copy-Protected CD with Passive Protection

Step 1: Burn a regular audio CD

Start Nero Burning ROM and create a new Audio CD project. [View] Add the audio tracks that you want to include on your copy-protected disc. [View] When you're ready to record, click the Burn button on the toolbar. In the Burn tab, make sure "Finalize disc" is unchecked. [View] Insert a blank CD and click Burn. Be careful not to infringe any copyrights! For loads of great music that you can copy legally, visit Creative Commons.

Step 2: Add a data session to the CD

Start another Nero compilation, this time selecting the "CD-ROM ISO" project type. In the Multisession tab, make sure "Start Multisession disc" is selected; and in the ISO tab, make sure Data Mode is set to "Mode 2 / XA". [View] Add any files that you want to be accessible when the CD is used in a computer. You might include "bonus" content, such as album art and lyrics. [View] For a more professional effect, consider adding the installer for your favorite spyware application and creating an Autorun.inf file so it starts automatically. When you're finished, click the Burn toolbar button. Insert the audio CD you created in Step 1, and click Burn. [View] Nero should warn you that the disc you've inserted is not empty; click Yes to add your data files as a second session. [View]

At this point, you've created a CD that contains both audio tracks and data files. The data files you put on the CD should be visible in Windows Explorer (in My Computer, right click the CD icon and click Open) and the audio tracks should be rippable with your favorite audio player. To add passive copy protection, you'll need to modify the layout of the data on the disc so that the audio tracks are more difficult to access.

Step 3: Rip the CD as a CloneCD image file

Make sure the CD you just created is still in the drive and start CloneCD. Click the "Read to Image File" button. Select your drive and click Next. Choose "Multimedia Audio CD" and click Next. [View] Select an easy to find location for the image file and click OK to begin ripping.

Step 4: Modify the image file to add passive protection

The CloneCD image you created in step 3 actually consists of three files with names ending in .CCD, .IMG, and .SUB. The .CCD file describes the layout of the tracks and sessions on the CD. You'll edit this file to add the passive protection.

Start Windows Notepad and open the .CCD file. Modifying the file by hand would be tedious, so I've created an online application to help. Copy the entire contents of the file to the clipboard and paste it into this form, then click Upload. Copy the output from the web page and paste it back into Notepad, replacing the original file contents. [View] Save the file and exit Notepad.

Step 5: Burn the modified image to create a copy-protected CD

Insert a blank CD and start CloneCD again. Click the "Write From Image File" button. Select the image file you modified in step 4 and click next. Select your CD recorder and click Next. Select "Multimedia Audio CD" and click OK to begin burning. [View]

That's it! You've created your very own copy-protected CD.

Now it's time to test your disc. If everything worked, the files from the data session will be visible from My Computer, but the audio tracks will not appear in Windows Media Player, iTunes, and most other mainstream music players. The CD should play correctly in standalone CD players.

PC and Laptop RAM Boosters Free download

It could be a case that your computer is slow due to high usage of RAM fitted in your computer, it could happen when there are some programs which keep using some amount of memory even after getting stopped.
 Moreover, if you use any RAM booster it will bring significant amount to improvement in speeding up your computer at that instant of time, so today we will let you know all the free programs which will free up the memory blocked by programs to increasing the speed in processing.
 Here are these 3 free programs which are the best free programs to boost up your RAM to increase performance


1. RAM Booster .Net – It is one the free program which lets you speed up your computer by releasing a good amount of blocked memory of your RAM. It really helps you to make your PC run better, faster and longer.

 RAM Booster performs it task very well in speeding your computer speed when ever your computer slows down.
Download RAM Booster http://www.rambooster.net/exe/rambst.exe

 
2. Mz Ram Booster – It is another free program created to enhance the performance of your computer by automatically recovering RAM memory and fine tune your system to run faster

However this programs provides more options to control cpu control and cpu boost to provide more improvement in speed.
Note: This application very easy ot use and works on windows 2000, XP, 2003 nd vista, you can also test it on windows 7 it may work.
Download Mz Ram Booster http://www.softpedia.com/progDownload/Mz-Ram-Booster-Download-63099.html


3. Ram Booster – It is another free program to boost RAM and increase speed of processing any time with in single click. You just need to click optimize to free up the memory you have. It will also decreases the cpu usage which will again increase more speed in processing tasks

Download Ram Booster http://www.sci.fi/~borg/rambooster/RamBooster20.msi

NEVER REINSTALL WINDOWS AGAIN

Windows is a large and complex operating system. There are many ways things may go wrong. It may be malware, corrupted files, faulty drivers or even hardware failure.  For many of us the simplest solution for these problems is to reinstall windows again. While this is an easy option, it’s very time consuming. It’s true that Microsoft has made the process of installing windows much faster since Windows 7 but the whole process takes a lot of time. Installing windows is only a part of it. You have to install all the drivers, updates and your favourite software applications.
There is a method called drive imaging that can save you the trouble of installing Windows again. Drive imaging makes an exact copy of your system partition. Then you can restore your system to the exact state when the image was created. The whole process of restoring takes only a few minutes. While this process may sound complex but with the right application it is very easy and has saved us many hours of installing Windows.
Now let us begin. For drive imaging we will be using Macrium Reflect because of its speed and smaller backup size. It has a great feature called intelligent sector copy which only copies the sectors having data. It also skip hibernate.sys and pagefile.sys which are automatically created by Windows. The result is drastically faster backup and smaller image size. For ease of use and understandability this guide is divided into 5 sections. After this hopefully you have to never reinstall windows again.

1. Preparing the Partitions

This step is optional but recommended. Proper partitioning will help in faster recovery.

1. Download and burn Minitools Partition Wizard Bootable CD.
2. Boot from the CD.
3. Create 2 partitions. One 50GB and another 100GB. To create a partition right click on unallocated space > Create New partition. Give it a meaningful label. Select “Primary” in partition type. Set size to 51200MB (that is 50GB). Create a 2nd partition of size 102400MB (100GB).  See the screenshots below for details.

   

   Initial View

   

   Creating 50GB partition

   

   Two partitions created

   
   

The 50GB partition will be used for Windows installation. It should be a primary partition and first partition on the hard drive. This is the partition we will back up. The 100GB partition is for documents, pictures and other user files. So when we restore the Windows the windows partition the user files will remain unaffected. These are recommended sizes but you are free to choose your own as per requirement.

2. Installing and Configuring Windows

We are using Windows 8.1 32-bit for this guide but it will also work with Windows 8, Windows 7, Windows Vista and Windows XP. The software we are using is compatible with all versions of Windows.

1. Install Windows in the 50GB partition we had created. Refer our article for installing Windows 7 or 8 from USB drive.

   

   

   

   
   
2. Install all the drivers and update windows. Also install your essential applications. Make sure only install essentials to keep the size of the backup small. If you are in a hurry you can  install multiple applications at once using ninite.
3. Now this is a crucial step. We will move Documents to the 100GB data partition we created earlier. Right click on Documents folder and select Location tab. Give a new location like D:/MyFiles/Documents inside data partition. Click OK and the folder will be moved. Do the same for your Pictures, Videos, Downloads and Desktop.

3. Backing Up the Windows Partition (Drive Imaging)

The above 2 steps were preparatory. This is the step in which we perform actual data backup. For backups we recommend portable hard drive or large enough flash drive. Backing up on the same hard drive on which Windows is installed defeats the purpose of backing.

1. Download and install Macrium Reflect free edition.
2. Launch Reflect. From Backup menu select Backup Windows. Make sure that only Windows partition is selected. Give the location of your portable hard drive in destination folder. Click Next.
3. In the next screen you can change Advance Options. The default option are good enough but you change them as per your requirement. There is one option to increase the compression which results in smaller images but takes more time to backup. There is another option to split the images into smaller files. 
4. When you are done click Finish.

In our case the backup process was completed in under 10 minutes and the resulting image size was around 3.5GB. This image once created can be used for any number of restores and you have to never reinstall windows again.

4. Creating Rescue Media

1. Launch Reflect again. From the Other Tasks menu select Create Rescue Media. 
2. Select either Linux or Windows PE. Selecting Linux will only give you the ability to restore the partition at exactly same size and position. Selecting Windows PE provides greater functionality and is recommended. You may have have to download additional 350MB Windows PE components depending on how you have installed Macrium Reflect.
3. Click Next and in final screen you can directly create a bootable USB. You can also create an ISO.

5.  Restoring the Windows Partition

If you have reached so far then well done. This is the only step that needs to be performed every time you restore. The above 4 steps need to be followed only once. Attach portable hare drive containing the backup and rescue media we have created earlier to your computer.

1. Boot from the rescue Media.
2. Macrium Reflect will launch automatically. Go to the Restore tab.
3. Click Browse for an image file and select the image of windows partition (having .mrimg extension).
4. Now click Restore image. In the next screen make sure that source and destination are correct.
5. Click Next. Here you can set advance options. By default Master Boot Record is also restore. You can disable it if required.
6. Finally click Finnish and the restoration process will start.

Restore tab

Source and target

Advance restore options

Restoring

The restore process took less than 10 minutes. Your system will be restored to the the exact same state it was at the time of creation of the image.

Conclusion

This guide intentionally has large number of steps so that there is no confusion at any step. It is advised that you make sure that your backup device is recognized by rescue media. Otherwise you won’t be able to restore. We use the same process at work to create monthly and weekly backups of our system partitions. So if anything goes wrong we simply restore to the latest backup. It has saved us countless hours of troubleshooting. Hopefully it will also save your time you will never have to re-install Windows again.

Thermal paste

Thermal paste, also commonly called thermal grease, is a conductive substance used to form a seal between two objects to ensure a consistent and thorough transfer of heat. When installing a new heat sink on a computer, for example, you need to clean off the thermal paste residue from the previous heat sink and then add a thin layer of thermal paste onto the new heat sink before tightening it down. This process creates a seal between the hot body of the CPU and the metal of the heatsink where the heat can migrate more effectively than it could through an air gap.

RESOLUTION

Resolution is a designation of the number of discrete elements an electronic or printed image is comprised of. In the case of displays (both large displays like HDTVs and small displays like those found on smartphones), the resolution is generally described in terms of the horizontal and vertical resolution. An HD monitor or TV, for example, has 1920 pixels running from side to side and 1080 pixels running from top to bottom. Although when discussing computer monitors and displays it is common to refer to the horizontal x vertical pixel count (as in the previously described 1920×1080 monitor), it is more common to talk about smartphone and other small displays in terms of Pixels Per Inch (PPI), which is another way to describe the resolution with an emphasis on how many pixels are in a given area (and thus how sharp and realistic the image is).

When talking about print media, the designation used is Dots Per Inch (DPI), which describes the density of discrete marks made by the printing in a square inch. The higher the DPI the more realistic the image. DPI can range from as low as 50 Dots Per Inch when working with dot-matrix printers to as high as 1800 Dots Per Inch when working with modern laser and photo printers.

The Internet Control Message Protocol (ICMP)

The Internet Control Message Protocol (ICMP) is one of the core networking protocols used to run the Internet. ICMP differs from other transport protocols such as UDP and TCP in that it is not usually used to exchange data between systems but instead used as a diagnostic mechanism. 

Typical ICMP messages indicate network and server states like that a host could not be reached, a router is down, or a service is unavailable. The vast majority of ICMP activity is completely hidden from the end user, although when performing network diagnostics users frequently interact with ICMP via tools like PING and TRACEROUTE.