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Friday, 1 June 2012

Enable registry when it is disable by Virus

Most of the virus disable regisry and task manager so that they could not be deleted by manually. To enable registry you have change some registry setting but registry is too disabled. So you could not enable the task manager and could not end process of virus. So you have to enable registry to do that.
to enable registry do the following
1) type gpedit.msc in Run box.
2) Click on Administrative Templates
3) Click the System and locate the Prevent access to registry editing tools and double click on it.
4) Select the enabled on the optionbutton the click apply.
This will enable registry.
Note: This tutorial is based on that you have removed the virus by a good antivirus.After removing virus you have still above problems so here is the tutorial.
Your valuable comments are appreciated.

Password Protection for Windows Password

With Following steps your windows password would not be cracked with any password cracking tools which are mostly used to crack windows passwords.

So let's start:

Step 1. Goto Start>Run.

Step 2. Type syskey.exe and then click Ok.

Step 3. A dialog box is open then Click on Update.

Step 4. Then enter your password.Then click OK.
Now its done......

Stay Safe

Wednesday, 30 May 2012

How to Find Your Computer IP Address in Windows XP and Vista

There are many reasons why you would want to find your computer IP address.some reasons might include, Internet connection problems, setting up a new home network, sharing files over a home network, and so on.
Every device connected to the public Internet is assigned a unique number known as an Internet Protocol (IP) address. IP addresses consist of four numbers separated by periods (also called a ‘dotted-quad’) and look something like 127.0.0.1. Go here for your public Internet IP address lookup.
However sometimes you need to find your computers IP address on your home network. Now days computer networking is very common in the average household and not just used in the office or business work environments. In fact many home computer networks have already upgraded to a wireless setup. If you ever need to change your ip address because of a conflict on your network here’s how…

 

Here are two ways to find your computer IP address:

First Way
  1. If you have an Internet connection icon in the bottom right corner of the taskbar, you can double click this to open it.
  2. Then choose the support tab at the top.
  3. Your IP Address will be there.
Second way
  1. Go to The Start Menu, then choose to open control panel.
  2. Choose Network connections. (Choose Wireless Network for Wireless setups)
  3. Right click on your internet connection icon and choose properties.
screenshot
  1. While you are there you should tick the box Show icon in notification area when connected.
  2. Then from the list choose Internet Protocol (TCP/IP)
find your computer IP address

This is my Internet Protocol Properties box. I have chosen to Set my IP address to 10.0.0.1 and the default gateway is my modem IP address.

How to find your IP address for your computer in Windows Vista?

  1. If you have a network icon in the notification area in the right hand corner of your taskbar then you can click on it.
  2. This small box will appear. (below) Click on Network and sharing center link.
sc1
sc2

Notes on how to find your computer IP address

  • See how to change your IP address
  • Your Ip address can also have 192.168.0.1. It just depends on how your Home Network is configured.
  • If You have the button checked that says to obtain an address automatically you can view your ip address by clicking on the internet connection icon in the right corner. Go to the support tab. Then you can find your computer IP address.

Tuesday, 29 May 2012

How to Find Your Computer Name and Change it

There will be times when you need to know your computers name. This is not the same as your computer username. You might use your computer name to share files and printers on your home network and sometimes the default computer name is just too difficult to remember. This is the number one reason for changing your computer name. If you are using the computer name to setup a shared printer you will need to rename your computer something easy. You do not want a string of numbers and letters.

How to find your computer name and change it?

  1. Press the Windows key and the Pause Break button at the same time. How easy is that? Applies to Windows Xp and Vista.
  2. Or go to Start menu>control panel>system (For Vista you can get more details by clicking on the items in the left bar menu.)
  3. Or go to the Start Menu and right-click on My Computer and select Properties (For Vista its not my Computer but just computer)
screenshot
To get a similar dialog box, as above, to appear in Vista you need to look a bit further. When you open system properties as in the steps above, you also need to click on a menu item in the left panel. For example, you can click on Advanced Options. This will bring up a dialog box like the Windows XP one.
You can also see your computer name  in System properties as the arrow shows below. And here you can click on change settings to change your computer name.
screenshot

Where is the name of your computer?

  1. Choose computer name from the tab
  2. And there it is in small writing…If it is a difficult or overly long name click on change. Change your computer name to something easy. Mine is called ‘server’ See screenshot below.
sc3

Can I change the computer name and still keep all of my files?

Changing your computer name will not effect your files on your computer. The will stay where they are, untouched and safe. Changing the name of your computer may effect your network settings. For example if you are sharing a printer and the path to the printer is rizviprinter and you change rizvi to saboo it will not find the printer.

Notes:
  • Windows Vista displays the computer name on the first page of the system properties.
  • When networking or sharing files you can either use your computer IP Address or your computer name.
  • All computers on the Network should have different names and IP address’s to avoid conflicts.

Monday, 28 May 2012

To find your mac address in Windows XP

Your computers Mac address or physical address can be used as a part of your wireless network security. If you have this security enabled, your router will only let the computers into the network with the corresponding mac address .


To find your mac address in Windows XP there are two ways
The first way to find your mac address
  1. Double click on the internet icon (near the time) in your system tray.
  2. Choose the support tab
  3. Then choose details.
  4. It will be labelled the physical address.
  5. It will look like this 00-D8-85-F8-D5-52 with 12 numbers.
screenshot
    screenshot




You can also
  1. Open a run command box. Startmenu>run
  2. Type in cmd /k ipconfig /all
  3. Once again it will be labelled physical address
screenshot
screenshot

Convert Nero image (.nrg) to ISO9660 (.iso)

n case you need to convert Nero image file .nrg into regular ISO9660 .iso utility nrg2iso might be helpful then.

It’s included into apt repositories of Debian and Ubuntu, so to install it execute:

sudo aptitude install nrg2iso


When it’s done, convert file by command:
nrg2iso image.nrg image.iso

Saturday, 26 May 2012

Is The Internet Down? 5 Common Home Network Problems

Sometimes home network problems are as easy to fix as plugging in a cord, yet “check your cords” is almost all the advice you’ll get from overworked help desk operators. Sometimes you get onto a help desk operator that wants to take you through every simple step, even the ones you have already performed. The average computer user gets very frustrated with troubleshooting methods used over the phone when trying to diagnose their home network problems. If you do not have time to sit there and listen to an hours worth of pre-recorded troubleshooting tips will give you a few ideas to try when having home network problems. If you have a wireless connection you should also see 5 Threats To Your Home Wireless Connection.

Here are 5 common home network problems:

These common  Home Network Problems may be responsible for the Internet not working as you expect. We also have an article about 5 uncommon home network problems.

Common Home Network Problems #1: Router Failure

Although computer hardware is increasingly reliable these days, I find that routers are one of the devices most likely to fail when having home network problems. Unlike most computers, routers stay on all of the time and perform millions of complicated electrical connections every second, causing them to wear down faster than most other hardware.
All modern routers run a stripped down operating system (usually Linux or NetBSD) which can suffer from its own errors besides the possible  home network problems that can occur. Here are three steps to follow to diagnose and possibly repair your router:
home network problems
  1. Unplug the router, count to three, and plug it back in to the wall. Routers often suffer from micro-blackouts present in home power supply (also called brownouts) which can screw up the operating system on the router. Unplugging the router and plugging it back in will force the operating system to reboot.
  2. Most routers start with all of their lights on and then turn off the lights for any unused network ports. If the lights all come on and stay on, it usually indicates the operating system failed during boot. If your device is under warranty, contact the manufacturer or your service provider. If you need to repair this problem yourself, follow the instructions in your router’s manual for resetting the software; if that doesn’t work, you need to buy a new router.
  3. If none of the lights on your router light up, make sure it’s plugged into a working electrical socket and that you have at least one computer plugged into it. If it still doesn’t work, then the router is dead and probably not worth repairing.

Common Home Network Problems #2: Wireless Interference

In the United States, the Federal Communications Commission (FCC) never gave computer companies permission to create wireless devices. The companies just started doing it using a special part of the wireless spectrum the FCC calls unlicensed.
Problems WIth Home Networks Sometimes Caused By Wireless Interference

Anyone can run a device on this part of the wireless spectrum for any purpose (except for the purpose of deliberately jamming other people’s connections). Because the unlicensed part of the spectrum is free, many companies besides computer companies use it to transmit wireless communications for their devices. Devices using the unlicensed spectrum include cordless telephones, bluetooth devices, wireless speakers, small FM radio transmitters used with iPods, walkie-talkies, and baby monitors.
People with an FCC-approved amateur radio license, such as your author, can broadcast at high power on the unlicensed frequency.
All of these other signals can significantly reduce the quality of your wireless Internet connection and cause network problems. The only way to deal with the annoying error is to find the offending device and try to turn it off or move it away from your laptop or router. Here are some steps you can use to find the offending device:
If you have a walkie-talkie or a baby monitor, walk around with the hand-held part until you hear a lot of noise. Keep trying to get closer to the noise until you find the offending device.
If all you have is a laptop and wireless router, you need special software. For Windows, I suggest the free inSSIDer 2 from metageek.net. Install it, open up its Time Graph, and start walking around where the interference is greatest until you find the offending device.
If the offending device belongs to your neighbor, there’s nothing you can do legally (unless you can prove your neighbor is using too much power or is purposely trying to block your signals). However, I find that an amicable solution can usually be reached: ask your neighbor to move the device to end of his or her house which is furthest from your house; then, move your router to the end of your house furthest from your neighbor. In most cases, this should be enough distance to eliminate the interference and give you full-speed wireless networking.
The problem can also stem from having two wireless routers in the same house.
See how to setup a home wireless network.

Common Home Network Problems #3: Too Much Upload

Everyone knows that downloading a big file makes downloading any other files or Web pages run slow, but did you know that uploading a file can make downloading run slow too?
The most common networking protocol on the Internet is the Transmission Control Protocol (TCP). TCP says that your computer must send an ACK packet (for acknowledgment) to the computer it’s downloading from every time it gets a big packet of downloaded data. This prevents the other computer from sending data to your computer after you cancel a download.
If your network is using all of its available upload bandwidth, your computer can’t send its ACK packets, so other computers stop sending data to your computer.
If your Internet connection is running slow, check the computers on your network to see if any are uploading a lot of data. Here are some applications that often hog the upload:
  • Filesharing applications like BitTorrent
  • 3D multi-player games like World of Warcraft
  • Voice over IP (VOIP) Internet phones like Skype. See making conference calls with Skype.
  • File uploads like uploading your pictures to Shutterfly or sharing files with family using Dropbox or uploading a video to YouTube

Common Home Network Problems #4: Bad Network Drivers

Microsoft Windows ships with over 100 different network drivers, which is a great convenience–you can usually just insert a new wired or wireless network card and start surfing the Internet. The only problem is that Windows only gets major updates once a year, so any drivers it ships with are usually out of date. This can cause home network problems as the driver will be out of date very quickly.
If you just purchased a new network card and it isn’t performing as well as you expect, you can try a very easy solution: install the driver that comes with the card (or download the driver from the card manufacturer’s website).

Common Home Network Problems #5: Zealous Firewall Rules

Firewalls provide essential security to Windows computers, but they can be a huge hassle when you try to share resources on your computer with other computers on your network and around the world. This is one of the most common home network problems that can interfere with your internet connection.
If someone is trying to connect to your computer and they get a “Connection Denied” error or a strange error, check your firewall rules to see if you’re blocking the other computer. If you are, you need to make an exception–but be careful, too broad an exception can open your computer to attacks from hackers.
The best exception only lets a specific computer connect to a specific port. You can figure out the port by searching Google for the name of the service you’re attempting to share. For example, a search for “windows printer port” brings up a Microsoft Technet article indicating the printer port is 9100.
To only allow a specific computer to connect, you need to know its IP address. If the computer is on the same network as you, open the start menu on that computer, click the Run… icon, type in cmd, type ipconfig on the command line that appears, and write down the IP address. Use that IP address in the exception you create to your firewall rules.
If the computer is running on the Internet, open a Web browser on the other computer and go to whatsmyip.org. Write down the IP address they give you and use it to create the exception to your firewall rules that fixes the problem with your home network so the other computer can connect.


If you didn't solve your home network problems please see this article about 5 uncommon home network problems