How to install and uninstall a webcam?

First read the instructions from your camera manufacturer and follow them carefully to ensure proper installation of your camera. You must follow all guidelines specific to your camera.

Correct camera installation involves inserting the camera setup/installation CD, following all steps described in your installation booklet, and restarting your computer. Plugging in the camera's USB cord at the incorrect time during the camera software installation procedure can cause various problems. After installation reboot your system

To uninstall your webcam:

-Uninstall any existing camera installations. Click "Start," "Settings," "Control Panel," and "Add/Remove Programs."


-Unplug the camera's USB cord from the computer and Reboot your computer.

How to prevent users from writing to USB drives?

Today USB drive also known as key chain drive is becoming the most popular removable storage device to move data to different locations. USB drives are available in the market with different features, for example password protected, compatible with all windows versions and extra storage capacity (up to 65 GB).

A common security issue at organizations is how to prevent their workers to write data onto USB drives using their PCs, because a user can easily move confidential data for other location.

If you have windows XP with SP2, then you can disable the writing option to USB drives.


Follow the given steps to disable the USB writing option:


-To edit the computer registry, first you should log onto your computer with administrative rights.


-First click on Start button and type "Regedit" in Run option.


-Here locate the location to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control


-Here in right side panel, click right to create a key with the name "StorageDevicePolicies".


-Now in left side panel, select "StorageDevicePolicies" key, again right click to create new DWORD value then label it "WriteProtect".

Set its value to "1". But again enable this option set its values "0".


-Now close the registry editor and restart your computer after any changes to go into effect.

How to Enable the Windows Task Manager?

Windows Task Manager is used to view the status of running applications, active processes, CPU and Page file usage history and active user in windows environment. As a system administrator you can mange the all features of Windows Task Manager, you can end task any running application and set the priority of any running process according to application importance. By default Windows Task Manager Status is enabled, but a user can also disable or enable it manually. But some time a registry hack applies on windows task manager to disable it and your system give you a message” Task Manager has been disabled by your administrator.” then you should enable it with editing the system registry or using Group Policy Editor.
Before proceeding further, first scan your system with up-to-date antivirus, and then follow the given steps to enable it using group policy editor.
To enable this feature, you will need to be logged into your computer with administrative rights.
-Now click on Start button and type “Gpedit.msc” in Run option then press OK.
-In Group Policy Editor, expand the “Administrative Templates” > “System” then “Ctrl+Alt+Del Options”, under the User Configuration option.
-Now in right side of panel “Ctrl+Alt+Del Options” double click on “Remove Task Manager” to change it setting. Here set the option “Disable” to “Enable” or “Not configured” and your task manager is available once again.

How to use Google advanced hidden Calculator?

Normally search engine keep the record of website addresses along with the important words for description of each web page, but the interesting thing is that you can use Google search box as calculator. Using the Google calculator you can perform standard and advanced scientific functions. Google built-in calculator can solve your routine mathematical problems for example (simple Arithmetic function, Trigonometric, Inverse trigonometric, Hyperbolic and Logarithm functions). One important feature of this calculator to evaluate the Constants values, units of measurement and currency conversion also.
Follow these examples with different type of calculations:

-Arithmetic Function
First open the Google.com and type the value like 100+500-10= in search box and press search button to show the result.

-Logarithm Functions
To calculate logarithm base 10 values, type log (100) in search box and press search button to show the result.

-Advanced Math Function
To calculate cos90 value, type cos(90) in search box and press search button to show the result.

Currency Conversion
To convert the 100 USD in British pounds, type 100 USD in British pounds and press search button to show the result.

How to recover windows startup missing files using Recovery Console?

Some time windows missing the startup files due to the power failure, virus's attack and any other illegal action by user. You can solve the windows startup problem with running the windows recovery console feature. Almost all windows serious problem can be solved using windows recovery console function. You can enable or disable the services, copy and paste data from one drive to others, format any drive and many others. Recovery console is normally used to recover the windows missing files from copying any other hard disk and CD drive to your hard disk or enable/disable the windows services. For repair windows using recovery console, you should have the bootable windows CD.
-First boot your computer using bootable windows CD. To boot from CD, first change the booting order setting in your system BIOS.
-When first blue screen will appear, press R to start the windows recovery console.
-Here you are prompted for Administrator password, type password or press
-enter if the administrator password is blank.
-Now at command prompt, type the command that you want to use for system recovery.
Enable: used to enables the windows drives or services.
Bootcfg: used to modify the Boot.ini files.
Copy: used to copy file from one location to target location.
Del: used to delete any file.
Cls: Clear the screen
Disable: used to disable the windows drivers or services.
Diskpart: used to manage the hard disk volumes.

How to clean a CD/DVD-Drive?

If your CD drive creating problem to read CD disc, taking time to read and showing message there is no disc in the drive. These are the symptoms of dirty or weak CD-drive lens, because dirty lens can create errors in reading or writing and soon will not work at all.
Follow the given steps to care and clean a CD-Drive.
-First make sure your discs are clean, unscratched and you are loaded it properly.
-Always use laser lens cleaner to clean drive lens.
-Insert the laser lens cleaner disc and play it for 2 to 3 min.
-Using CD drive cleaner properly clean the CD-ROM laser from dust. If your drive still creating problem then open it and clean the lens with a cotton swab.

How to display text message warning before windows Logon?

You can insert legal warnings or any interesting messages for others just before logon to windows based computer. This is very useful if you want to give a message to new users about the uses of computer. You can create this banner message using the windows registry editor but make sure before modifying your system Registry about its backup because Registry contains all information how your system runs. This backup will help you to restore Registry in case any problem occurs after modifying.
To edit the computer registry, first you should log onto your computer with administrative rights.
-Click Start button then type regedit in Run option then press Enter for next.
-Here locate the location to:
HKeyLocalMachine\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\WinLogon
-Here in right side panel, double click on the key LegalNoticeCaption and give it a value you want to see in the menu bar. For example “Welcome Screen for All Users”.
-Now again in right side panel, double click on the key called LegalNoticeText and change the value you want to see in the dialog box. For example “You may not succeed later when trying to logon without a password.”
-Now close the registry editor and restart your computer after any changes to go into effect.