Restore Default Desktop Icons

You can restore the all windows default desktop icons, if you accidentally deleted them from your computer desktop.
List of windows default icons.
My Computer
Internet Explorer
My Documents
My Network Places
Recycle Bin
Fellow the given steps to restore the windows default icons:
Go to Start Button and open Run
Type the given command to open windows Desktop items dialog box.Control desk.cpl,,@Web
Click OK
Now Select Items that you want on your Desktop
Click Ok

Disable The Unread Email Notification In XP Welcome Screen

1. Click on Start button and type “Regedit” in Run option.
2. Here locate to :HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\UnreadMail
3. In right side panel, double click on the key MessageExpiryDays and set its value to 0.
4. If MessageExpiryDays key doesn’t exist, then in right side panel, click right to create a key with the nameMessageExpiryDays and then set its value to 0.
Now close the registry editor and restart your computer after any changes to go into effect.

Speed Up By Closing Idle Services

This trick helps you increase your speed by closing all the idle background services. To enable this feature, you will need to be logged into your computer with administrative rights.
1. Click Start button and click on Run option.
2. In the Run box, type the command “Rundll32.exe advapi32.dll,ProcessIdleTasks” and press Ok buttHere system will take some time to end the background idle tasks.

Reduce the shutdown time of Windows 2000 n XP

You can reduce the shutdown time of windows 2000 and XP using some tricks. Actually windows XP take time to close all running programs and applications before shutdown, but you can minimize this time if you have little knowledge about editing windows registry.
Follow the given steps to reduce the shutdown time:
· First click on Start button then type Regedit in Run option. Here locate the location to:HKEY_Current_User\Control Panel\Desktop
· Here in right side panel, double click on AutoEndTasks and here its default value is 0. Now change it to 1.
· Now in same side panel double click on value name WaitToKillAppTimeout. Its default value data is 20000; now change this value of WaitToKillAppTimeout to 3500.
· Now close the registry editor and restart your computer after any changes to go into effect.

Speed up viewing shared file across a network

Windows 2000 & XP machines delay as long as 30 seconds when you try to view shared files across a network because Windows is using the extra time to search the remote computer for any Scheduled Tasks. Here’s how to prevent this remote search for Scheduled Tasks:Open up the Registry and go to :
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionExplorerRemoteComputerNameSpace
Under that branch, select the key :
{D6277990-4C6A-11CF-8D87-00AA0060F5BF}
and delete it.
If you like you may want to export the exact branch so that you can restore the key if necessary. This fix is so effective that it doesn’t require a reboot and you can almost immediately determine yourself how much it speeds up your browsing processes.

How To Protect Your Wireless Network

If you have a Wi-Fi network at home or in a small office, intruders may be after you, such as casual "war drivers" who troll city streets, looking for unprotected wireless networks. It may not just be malicious attackers who cause problems. If you don't change the defaults of your wireless network, a neighbor with the same router make and model might accidentally connect to your network, stealing your bandwidth or reconfiguring your router and network without your knowledge. There's plenty you can do to protect yourself.

Change your administrator password: Before you do anything else, change the administrator password on your router. Every model of router comes preconfigured with a standard password, and hackers know this. So it's exceedingly easy for someone to hop onto your network, gain full control over its administrative rights and wreak havoc.

How you change your password varies from router to router, so I'll show the steps for a representative model: the Linksys WRT54GX4.


Log in to the setup screen by opening your browser and going to http://192.168.1.1. When the login screen appears, leave the username blank. In the password section type admin, and then press Enter. Click the Administration link, then click Management. At the top of the page, you'll see the Router Password area. Type a password into the Router Password box, then retype it in the "Re-enter to confirm" box. From now on, when you log in, use that password instead of admin when you log in to your router.

Stop broadcasting your network's SSID -- and change its name: Your service set identifier (SSID) is your network's name, and if people know what your SSID is, it's easier for them to find your network and connect to it. Your router broadcasts its SSID, and that broadcast tells passersby there's a network there. It also gives out the name.

So, if you turn off SSID broadcasting, you'll go partway toward keeping casual users from seeing your network. But doing that, by itself, won't necessarily solve the problem. Even if you stop broadcasting your network's name, people might still be able to connect to your network. That's because manufacturers generally ship their wireless routers with the same generic SSID; for example, Linksys routers all have the SSID Linksys by default. So, even if you stop broadcasting your SSID, intruders can easily guess your router's name and log on. To solve the problem, first change your SSID's name, and then hide it. That way, passersby won't see it, and they won't be able to guess it either. How you do this varies from manufacturer to manufacturer, and even from model to model from the same manufacturer. But for many models of Linksys routers, including the WRT54GX4, here's what to do.


Log in to the setup screen, then click the Wireless tab and look for the Wireless Network Name (SSID) box. Enter the new name of your network.

On the same screen, look for the Wireless SSID Broadcast setting, and choose Disable. Then, click Save Settings.

If you are doing this from a wireless PC, you will immediately lose your connection to your network. So will every other wireless PC on your network. After you change your network name, reconnect each Wi-Fi computer to the network, using the new network name. You're now set.

Use encryption: If you take only one step to protect your home or small office network, it should be this: Use encryption. Wi-Fi networks are incredibly convenient -- and incredibly easy to spy upon. All that data going out over the air among your PCs and between your PCs and the Internet can easily be snooped on by anyone nearby using simple, off-the-shelf software such as packet sniffers.

There are two encryption Wi-Fi standards --- Wireless Equivalent Protocol (WEP) and Wi-Fi Protected Access (WPA). Don't use WEP -- it's not nearly as safe as WPA. In fact, the biggest security breach in history was caused because a store owned by TJX Companies Inc. that used WEP, which allowed hackers to break in to the network.

Here are the steps for the Linksys WRT54GX4 and many other Linksys models:

Go to the Setup screen and choose Wireless --> Wireless Security. In the Security Mode drop-down box, choose WPA/WPA2 Personal, then choose either WPA Personal or WPA2 Personal.WPA2 is a more secure method, but your hardware and software may not support it. Check your network adapter manufacturer's Web site to see if it supports WPA2 Personal. Windows Vista supports WPA2 Personal, but not all versions of Windows XP do.


To see if your version of XP supports WPA2 Personal, select Control Panel --> Add or Remove Programs. If the Show Updates check box is not selected, check it. Scroll to the Windows XP - Software Updates section and look for Windows XP Hot fix KB893357. If it's not there, your version of Windows XP won't support WPA2 Personal. You can, however, go to the Microsoft updates site, and download KB 893357 to turn on WPA2 functionality.

If you're not sure if your hardware and software supports WPA2 Personal, use WPA Personal.

From the Encryption Algorithms drop-down list, choose TKIP. In the Personal Key box, type a key between 8 and 63 characters in length. The longer it is and the more random the characters, the more secure it will be. Write down the key. You'll need to use this on each wireless PC on your network.

Leave the Group Key Renewal row at 3600. Click Save Settings. That applies the key to your network. Now, only PCs that use WPA encryption and the key you just generated will be able to get onto your network.

Next, configure each wireless computer on your network to use WPA and the key you just generated. (Wired PCs don't need to be configured.)

For each Windows XP PC: Click the wireless connection icon in the system tray, then click Properties, click the Wireless Network tab, highlight your network, click Properties, and then click the Association tab.

In the Network Authentication drop-down box, select WPA-PSK. In the Data Encryption dialog box, choose TKIP.

When you do that, the box that reads "The key is provided for me automatically" is checked. Uncheck this box. Enter your WPA key in the "Network key" box, and type it again in the "Confirm network key" box.


Click OK and then OK again. Now the Windows XP PC can connect to your network using WPA encryption. In Windows Vista:

Select Control Panel --> Network and Internet --> Network and Sharing Center --> View Status.

From the Security type drop-down box, select WPA-Personal or WPA2-Personal, depending on your encryption method.

From the Encryption type drop-down box, select TKIP. In the Network security key box, type in the security key you used on your router.

Click OK. Your Windows Vista PC can now connect using encryption. If you've got a small or medium-size business, and are looking to encrypt your network, you might consider an outsourced solution, such as SecureMyWiFi from WiTopia. Prices for SecureMyWiFi vary according to your network size, and start at $99 per year for one wireless access point with 100 users.

Protect yourself using MAC addresses

There's another way to protect your wireless network: Tell it to allow only certain computers to connect, and ban all others. To do that, you'll filter by Media Access Control (MAC) addresses, which are in essence IDs for wireless adapters. Every piece of networking hardware has a unique MAC address. So you'll be able to tell your router to allow only specific MAC addresses onto the network and keep all others off.

First, you need to find out the MAC address of all of the wireless adapters on your PCs.

Open a command prompt on each computer, type ipconfig /all, and press Enter.

The screen that appears will display a good deal of information. Look for the numbers next to Physical Address, such as 00-08-A1-00-9F-32. That's the MAC address. Write all those MAC addresses on a piece of paper.


Now log back into your router, and configure MAC address filtering. On the Linksys WRT54GX4 router:

Click Wireless, and then click Wireless Network Access to get to the Wireless Network Access screen.

Select "Permit only," and type in the MAC addresses into the text boxes. Click "Save settings." Now, only computers you specify will be allowed onto your network.

Turn off your network when you're not using it

This simple precaution can go a very long way toward keeping you safe: Simply turn off your router when you're not using your network. If you're off at work all day and no one's home, why keep your router running? The same holds true for when you sleep, or are away from your house for another reason. The less time your wireless network is available, the less likely it is to get hacked.

Check for wireless intruders

You can never be too safe, and so even if you've taken all this advice, it's a good idea to check your network to see if intruders have made their way in. And if you haven't taken all this advice, that's all the more reason to check.

BIOS Tips

As you can see there are various ways on bypassing/changing BIOS passwords.
I have successfully used all of the options below on various computers many years ago. These methods will work on computers of today. I have updated the Standard BIOS backdoor passwords for current computers made as of last week. ( big grin ).
READ EVEYTHING BEFORE YOU USE ANY METHOD LISTED BELOW.

Basic BIOS password crack - works 9.9 times out of ten
This is a password hack but it clears the BIOS such that the next time you start the PC, the CMOS does not ask for any password. Now if you are able to bring the DOS prompt up, then you will be able to change the BIOS setting to the default. To clear the CMOS do the following:
Get DOS prompt and type:
DEBUG hit enter
-o 70 2e hit enter
-o 71 ff hit enter
-q hit enter
exit hit enter
Restart the computer. It works on most versions of the AWARD BIOS.





Accessing information on the hard disk

When you turn on the host machine, enter the CMOS setup menu (usually you have to press F2, or DEL, or CTRL+ALT+S during the boot sequence) and go to STANDARD CMOS SETUP, and set the channel to which you have put the hard disk as TYPE=Auto, MODE=AUTO, then SAVE & EXIT SETUP. Now you have access to the hard disk.

Standard BIOS backdoor passwords
The first, less invasive, attempt to bypass a BIOS password is to try on of these standard manufacturer's backdoor passwords:
AWARD BIOS
AWARD SW, AWARD_SW, Award SW, AWARD PW, _award, awkward, J64, j256, j262, j332, j322, 01322222, 589589, 589721, 595595, 598598, HLT, SER, SKY_FOX, aLLy, aLLY, Condo, CONCAT, TTPTHA, aPAf, HLT, KDD, ZBAAACA, ZAAADA, ZJAAADC, djonet, %шесть пpобелов%, %девять пpобелов%
AMI BIOS
AMI, A.M.I., AMI SW, AMI_SW, BIOS, PASSWORD, HEWITT RAND, Oder
Other passwords you may try (for AMI/AWARD or other BIOSes)
LKWPETER, lkwpeter, BIOSTAR, biostar, BIOSSTAR, biosstar, ALFAROME, Syxz, Wodj
Note that the key associated to "_" in the US keyboard corresponds to "?" in some European keyboards (such as Italian and German ones), so -- for example -- you should type AWARD?SW when using those keyboards. Also remember that passwords are Case Sensitive. The last two passwords in the AWARD BIOS list are in Russian.

Flashing BIOS via software
If you have access to the computer when it's turned on, you could try one of those programs that remove the password from the BIOS, by invalidating its memory.
However, it might happen you don't have one of those programs when you have access to the computer, so you'd better learn how to do manually what they do. You can reset the BIOS to its default values using the MS-DOS tool DEBUG (type DEBUG at the command prompt. You'd better do it in pure MS-DOS mode, not from a MS-DOS shell window in Windows). Once you are in the debug environment enter the following commands:
AMI/AWARD BIOS
O 70 17
O 71 17
Q
PHOENIX BIOS
O 70 FF
O 71 17
Q
GENERIC
Invalidates CMOS RAM.
Should work on all AT motherboards
(XT motherboards don't have CMOS)
O 70 2E
O 71 FF
Q
Note that the first letter is a "O" not the number "0". The numbers which follow are two bytes in hex format.

Flashing BIOS via hardware
If you can't access the computer when it's on, and the standard backdoor passwords didn't work, you'll have to flash the BIOS via hardware. Please read the important notes at the end of this section before to try any of these methods.


Using the jumpers
The canonical way to flash the BIOS via hardware is to plug, unplug, or switch a jumper on the motherboard (for "switching a jumper" I mean that you find a jumper that joins the central pin and a side pin of a group of three pins, you should then unplug the jumper and then plug it to the central pin and to the pin on the opposite side, so if the jumper is normally on position 1-2, you have to put it on position 2-3, or vice versa). This jumper is not always located near to the BIOS, but could be anywhere on the motherboard.