Hey… Here today I came up with an article on Firewalls. I will speak about how it works and how are they useful for cyber security purpose. Well if you are a regular internet user then you might have heard of the word ‘firewall’ long time before. Well, I will explain it to you with a simple example, when an employee in his office tries to access a website such as social network they get a message “Firewall used” on their screen! This is what the function of a firewall. A firewall protects the entire corporate network so that hackers cannot enter into your private (corporate) network.
Showing posts with label xp. Show all posts
Showing posts with label xp. Show all posts
Friday, 14 February 2014
PLANTING BACKDOORS IN WINDOWS OS – BYPASS LOGIN PASSWORD
Hey guys, it’s been a long time I wrote an article here. I’m sorry for such a huge gap, I had exams
… Anyway, this won’t be repeated again. Today I am going to teach you planting backdoors on windows operating system. Well, first I will mention what a backdoor is. A backdoor is a path through which an access made with out the authority’s permission or his knowledge. So today after reading this article you could plant a backdoor on a windows system, but you need a complete access once into his system for that. Once you access the victim’s system you will have to follow the below steps.
Thursday, 13 February 2014
Basic Internet Explorer Troubleshooting – Repair or Reinstall
You may have to repair or reinstall Internet explorer due to a number of reasons.
Let’s take a look at some of the common methods to repair / reset Internet Explorer:
Anti-virus Removal Tools
Anti-virus Uninstaller Tools
Many times you will find that you are not able to uninstall an anti-virus application from your computer. Many people often freak out and immediately rush to the phone to call their “online tech support” company because they think their computer has been infected by some
How to clean a computer when there is a Virus, Spyware, Rootkit, Trojan or any other Malware infection?
Given below are some basic troubleshooting steps:
- If your computer is on a network (LAN), take it off it – immediately.
- Turn off System Restore
- Update the virus definitions of your anti-virus application.
How to start your computer in Safe Mode?
Pretty simple, really ! When your computer does not start up normally, the next thing you can do is to check if it starts up in Safe Mode. This is a special mode in which your computer starts up with just a minimum set of drivers. Once your computer boots
What is a Parallel (Dirty) Windows Installation?
Windows XP Parallel (Dirty) Installation (Dirty Copy):
Just remember this: A Parallel Installation of Windows XP is nothing but installing Windows XP in a different folder, other than the default one, which isC:\Windows. This is generally done for troubleshooting purposes and in situations where a user needs to access his drives/data and copy them onto an external storage device like a CD/DVD or even a USB Pen drive. Once you have copied all the data you need using Parallel installation, you can then do a Clean installation of Windows and then put back all the data.
This is how you would go about it:
- Start Windows XP Setup in the normal way and continue till you accept the End User License Agreement (by hitting <F8> key)
- Windows XP Setup will detect the existing installation of Win XP on your computer and will also give you the option to Repair the existing installation
- Now, since you do not want to repair the existing installation, but instead want to have a parallel instalaltion, select the existing installation of Windows XP and hit ESC to “Continue installating a Fresh copy of WIndows XP“….
- Then select the same partition it is currently installed and hit <Enter> just once
- In the next screen press C to continue installing in the same partition
- Next, choose the option “Leave the current file system intact” so that all your existing files etc are not lost.
- In the next screen, this is where you will be alerted by Windows that a Windows Folder already exists containing a copy of the Operating system. This is also where you will be given the option to install Windows XP in the same folder (by overwriting existing system files) by hitting the L key or to choose a different folder (for the parallel installation) by hitting the ESC key.
- So hit the ESC key now and give a different name to the folder where you want your parallel installation to happen (by using the backspace key and put in a different folder name) and just follow the on-screen instructions from there on.
For example, your existing windows installation will be in a folder calledC:\Windows. So, choose a different folder name now for the parallel installation – likeC:\Windows1 (or any other name you wish) – and continue with the rest of the installation as usual….
Why is this called a Dirty Installation or a Dirty Copy? That’s because you are putting in a copy of Windows without cleaning out the old installation which could possibly be infected with virus or contain corrupted system files.
Right-click menu is very slow
How to fix: Right-click menu is very slow to appear
Have you ever right-clicked on a file or a folder and had to wait for ages and ages before the Windows Context Menu opened up? You might also get the following error : “Windows has encountered a problem and needs to close…sorry for the
CD-Rom/DVD-Rom drive not detected by Windows
How to fix: CD-Rom/DVD-Rom drive not detected by Windows?
This problem can be caused by corrupted Windows registry entries. In order to fix the problem, you might have to use the Windows Registry Editor to delete the corrupted entries. To do this, you must have administrative rights to your computer.
Step 1: Check if the drive shows up in Device Manager:
How to Roll Back a Device Driver?
How do you restore a Windows device driver to it’s previous version?
You should have Administrator Rights on the computer to perform these steps:
You might want to restore the driver for a device to a previous version if you encounter problems with your computer or device after upgrading the driver.
Forgot Windows Product Key?
Forgot your Windows XP Product Key? How to recover your Windows XP Product Key?
If you do not remember your current windows XP product key, look for a file called “Unattend.txt“. You will find it either on your Windows XP Disk or in your Hard-disk drive.
Wednesday, 12 February 2014
The Windows Recovery Console
The Recovery Console is an Advanced Diagnostic Mode used to Troubleshoot major Windows issues. The Recovery console is Command Line based.
The Recovery console can be accessed from the Windows XP Installation Disk. Boot your computer using the Windows Disk and when you see the Welcome to setup Screen you will also find the option “Press R to Repair windows using the Recovery Console…”
Enable disabled USB ports in a Windows XP,windows 7 computer?
How to enable disabled USB ports in a Windows XP computer?
Open the Windows Registry ‘ Expand HKLM ‘ Expand System ‘Expand CurrentControlSet’ Expand Services.
Scroll down to find “USBSTOR”
Windows XP Boot Sequence
The Windows XP Boot Process – in detail:
Files Needed: NTLDR, NTDETECT.COM, BOOT.INI, NTOSKRNL.EXE, BOOTSECT.DOS, NTB00TDD.SYS, HAL.DLL, WINLOGON.EXE, LSASS.EXE
BOOT.INI: Provides information about the location of the Operating System. If more than one Operatig system is installed in the computer, it is displayed during the boot process.
NTLDR: Is the Windows Boot- Strap Loader (Which means it is a special application that is responsible to start up other files or programs which are needed to boot up Windows.)
How to speed up your slow computer?
How to make your computer work faster? How to optimize your computer?
Computers work faster when they are brand new. However, as you keep using it, it “slows down” progressively. Does this mean you have a ‘bad’ computer in your hands? No. This is just one of those things you got to live with when you buy a computer.
Basic Blue Screen Error (BSOD) Troubleshooting
A Blue Screen error is also known as BSOD, which is an acronym for Blue Screen Of Death. It is also referred to as a Stop Error. This error got its name largely due to the fact that when Windows encounters a critical error and freezes, it displays a blue screen which fills the entire monitor. It contains a hexadecimal error number, (example:0×000000050), the name of the file which could be the possible cause of the error (example:SPCMDCON.sys), and a few suggestions on how to fix the error.
How to protect your computer from viruses, spyware, rootkits, trojans, keyloggers, hijackers and other malware?
When a computer is connected to the internet, it is exposed to a large number of online threats – they can be in any form, for example: Viruses, Spyware, Malware, Trojans,Adwares, Dialers, and Rootkits etc. The only way to protect your computer from these online threats is to – well, firstly make sure your Operating System (Windows XP/Vista/7 etc) is properly updated.
Basic Computer Troubleshooting – Windows XP, Vista, 7 Computers
Computers can be very intimidating – especially when they start to throw a tantrum! Follow these easy-to-understand, basic Windows computer troubleshooting steps and fix your computer all by yourself.
The Windows XP Operating System comes to you with a set of built-in tools which are designed especially for troubleshooting. Now, let’s list out the things we need to do when you notice something is ‘just not right ‘ in your computer.
Quick basic computer troubleshooting steps for you:
- Check for “Not Responding” applications in the Task Manager, usingCtrl+Alt+Del keys and stop it.
- Try LKGC (Last Known Good Configuration)
- If the error is due to a recently installed application or device driver, uninstall it.
- Try a system restore to a previous date
- Repair Windows
- If nothing works, say your prayers and re-install Windows (Have you backed up your data ?)
Detailed Basic Windows (XP, Vista, 7) Computer Troubleshooting:
Try out these steps one by one till your issue is resolved:
- If you notice that your computer has “frozen up” or just “stopped responding” – first give it some time to recover itself – and that could be say something like 3 – 5 minutes. (Tap on the NumLock key on your keyboard – if your computer is just busy, the Numlock light will go on & off when you tap the key. Else, if your computer is completely frozen, the NumLock light will just stay on.)
- If after, say 5 minutes your computer still does not respond, check the Task Managerand see which program shows up as “Not Responding” in it’s status. To get to the Task Manager, just hit <Ctrl>+<Shift>+<Esc> on your keyboard or right-clickanywhere in the Task bar and select “Task Manager”.
The Task Manager will look like this:
Now look at the image above, and note there are two programs that have a status of “Not Responding” – this is probably what has caused your computer to stop responding. Click on each of them and then click on the End Task button seen at the bottom of that dialog box. Then, in the next window, click OK to confirm your decision to terminate the application.Remember, doing this will result in loss of any unsaved data.
But once you have terminated the erring application, you can restart it again and carry on with your work.
- In case you were not able to terminate the frozen application, go ahead and restart your computer by clicking on the Start Button (if that responds, but chances are that, at this stage, it will not) or by using the power button in your computer. (You will lose any unsaved information, sorry!)
- Many times, your issues will get resolved after a simple restart of your computer. But what if the problem still persists? You still have a wide range of options. First – get to a screen called “Windows Advanced Boot Menu Options” – the easiest way to get there is to restart your computer, count 02 seconds and start tapping on the <F8> key on your keyboard. The Windows Advanced Options Menu screen would look something like the one given below:
As you see in the image above, there are a number of options. What we are primarily interested in is the option called “Last Known Good Configuration“. Use the arrow keys on your keyboard and navigate to that option and hit the <Enter> key on your keyboard.
Having done that, let’s wait for your computer to restart itself to the most recent configuration that worked. Generally, that should resolve a number of problems.
But what if it hasn’t? There is one more option and it’s called “System Restore“
- In order to get to the System Restore option – Click on the Start Button -> All Programs -> Accessories -> System Tools ->System Restore. You will then see the “Welcome to System Restore” screen with the default option already selected “Restore my computer to an earlier time“. Click on the Next button to continue – you will get a screen that looks like the image given below:
Note the image above – you see a calendar with some dates which are highlighted. These are called restore points which were automatically created by Windows. You can select any of these restore points and click on the Next button to continue with the system restore wizard. Once you come out of the wizard, your computer should restart and come back to the good working condition it was on the date that you have selected. If one restore point did not work, you can always select a different one. (It is also a good idea to create a restore point when your computer was working fine, though Windows XP creates them automatically).
Sometimes, you may not be able to run System Restore because the computer cannot start up in the normal way. But you can still start up your computer up in Safe Mode / Safe Mode with Command Prompt and run System Restore from the Command Prompt by typing:
%systemroot%\system32\restore\rstrui.exe
(%systemroot% is the same as C:\Windows.)
While you are doing this, you may be prompted to select the Operating System in your computer (select Windows XP Professional here) and also to enter your username and password. You should have Administrator rights in your computer to do this.
- If you get to the point when you have tried multiple system restores and it still does not fix your problem, you can still go and repair the windows installation in your computer. In order to do that please follow the steps given below:
How to Repair the Windows Installation in your computer?
- Boot from the Windows XP installation CD
- Choose press enter to set up Windows XP now
- Press F8 to skip through the End User License Agreement (EULA)
- Now press R to begin a repair installation
Please note: There are two things you can do here: First: When you first get the option which says “Press R to Repair a Windows XP installation…” it will take you to theRecovery Console where you have many options to Repair Windows in your Computer. Do NOT select this option, unless you want to land up at the Recovery Console and try to repair Windows from there.
Instead, wait till you get the same option a second time – you will get this option after youAccept the License Agreement (By pressing the F8 key) – then, wait for Windows to locate the Current Windows Installations in your Computer – Once Windows has identified the existing installations, you will be able to select that installation and Repair it by pressing R! Though, it will go through the full Windows XP re-installation process, it will not result in loss of data – as this procedure will only repair theWindows Operating Systems System Files in your computer.
Friday, 13 December 2013
80 Ways For Windows XP
Customisation
1. Remove the Recycle Bin
If you prefer to work with a completely clear desktop, you can hide the Recycle Bin with a little Registry hack. You can still use the [Shift] + [Delete]