How to Change a Computer Password Using Command Prompt

1. Reboot the computer
   
   
2. 2
   Right after the bios is finished, hit F8 (or F2,F10,F12)
   
   
3. 3
   Select 'Safe mode' or 'Safe mode with networking support'
   
   
4. 4
   Windows will boot up to the logon screen. Click administrator, 9/10 there is no password.
   
   
5. 5
   Open Command Prompt. You can go to Start > Run and type cmd.exe or simply search for cmd using the Windows search function.
   
   
6. 6
   Type net user and press Enter. This will bring up a list of user accounts. Look here for the name and exact spelling of the account whose password you wish to change.
   
   
7. 7
   Type net user name goes here *. Do not neglect any of the spaces (particularly the one before the *) or the command won’t work.
   
   
8. 8
   Press Enter. Once submitted, the command will give you the option of typing a new password for the user.
   
   
9. 9
   Carefully type the desired password and press Enter. The characters will not display as you type, so make sure the Caps Lock isn’t on and be very thorough with the spelling and punctuation.
   
   
10. 10
    Retype the password to confirm. This should weed out any typos.
    
    
11. 11
    Press Enter. The new password should go into effect immediately. If you get an error message or your access is denied, the account you’re working on doesn’t have high enough authorization to change any passwords. See Tips for possible solutions.
    
    

Windows 7: Manually Activating with command

1. Open Command Prompt with Administrative Privileges:  (Type "cmd" into the search box.  right-click on cmd and select "Run as administrator".)    

Note:  See detailed instructions on Opening the Command Prompt as an Administrator in Windows 7.

2. When the DOS prompt appears:

Type in:  c:\windows\system32  and press the Enter key.

Type in:  cscript \windows\system32\slmgr.vbs /ato  and press the Enter key.

(IMPORTANT:  You must type in the command exactly as shown, including spaces.) 

 

3. The results of running this command will be an Output Message: 

• If the output message says 'Product activated successfully', then the product activated successfully.
   
• If the output message DOES NOT say 'Product activated successfully', do the following:

1.  Make a note of the error code that is generated in the Command Prompt window.

2.  Refer to Windows 7: Activation Troubleshooting to find out how to resolve the error code.

3.  Try activating Windows again.   (Return to Step 1.)

4. Following these steps will activate Windows 7 for 180-days.  After this 180-day time period, you will need to complete these steps again to reactivate. 

M S Dos External commands

Networking, Wireless, and Mobility Connect to a network or the Internet. To open Click the network icon in the System Tray --àConnect or disconnect Control Panel--à[Network and Internet]-à Connect to a network Control Panel-à[Network and Internet]-à Network and Sharing Center-àConnect to a network Description Once you've set up a network connection, use the "Connect to a network" screen to connect to any networkwired, wireless, VPN, or dial-up. Connecting is straightforward: double-click the network to which you want to connect, or highlight it and click Connect. When you're connected to a network, disconnect from it by clicking Disconnect. This screen is primarily designed for wireless, dial-up, and VPN connections. If your only connection to a network is via an Ethernet cable, you won't even get to the screen when you choose to connect. Instead, you'll be told that you're already connected to the network. Want to disconnect? There's a simple, physical solution for youunplug your Ethernet cable. Configure and manage your network connections. To open Control Panel [Network and Internet] Network and Sharing Center Manage network connections Command prompt ncpa.cpl Description Manage Network Connections is actually a specialized folder that lists and provides details about all of your network connections, and lets you configure and manage them. Click any network connection and a toolbar appears that lets you take a variety of actions on the connection, including connecting it, disabling the network device, renaming the connection, viewing the status of the connection, changing the connection's settings, and diagnosing problems with the connection. Configure and manage wireless networks. To open Control Panel [Network and Internet] Network and Sharing Center Manage wireless networks Description Many people regularly connect to more than one wireless networkone at home, one at work, and possibly more than one public hotspot. When you create a wireless connection, you have the option of saving that network as a connection; any networks that you've saved will show up on the Manage Wireless Networks screen. Configure network services associated with a network connection. To open Control Panel [Network and Internet] Network and Sharing Center View Status Properties Description The Network Connection Properties screen lists all the installed protocols and services associated with a network connection (both wired and wireless). It provides you with basic information about your wireless connection to help with troubleshooting, and it helps you configure your network and its connection. You can selectively choose which protocols and services are supported by any specific connection by using the checkboxes in the list. Display a "live" map of your network. To open Control Panel [Network and Internet] Network and Sharing Center View full map Description The Network Map feature shows a detailed schematic of your network and all the devices connected to it. The map is "live"that is, the icons are not merely representations, but also perform actions and provide information. Hover your mouse over a device and you'll get information about that device; for example, hover your mouse over a gateway to see its IP address and MAC address (a MAC address is a unique identifier for network hardware, a kind of serial number). Click a PC, and you'll connect to it and see all the shared network files and folders in Windows Explorer. Click the Internet icon, and you'll launch your default browser to your home page. Configure, customize, and access network and collaboration tools. To open Control Panel [Network and Internet] Network and Sharing Center Description The Network and Sharing Center lets you configure, access, and troubleshoot a wide variety of network features. You'll most likely find that it's the primary place you'll turn for handling network issues, configuring networks, troubleshooting networks, and performing other network-related tasks. Front and center is a brief diagram of your network, showing your computer name and how it connects to your local network, and then to the Internet. Think of it as a kind of "you-are-here" diagram, because you'll see the words "This computer" underneath your computer. The diagram is so basic that at first it appears it may be useless, but in fact, you'll find it surprisingly useful. The diagram is "live" so that if there's a problem with your network or Internet connection, you'll be notified here. In addition, you can click on the icons representing the different portions of your network and connect to them. For example, click your computer's icon, and you'll open Windows Explorer to your Computer folder. Click the Network icon to open Windows Explorer to the Network folder, which lists all of the computers on your network. Click Internet to open Internet Explorer to your home page. Set up a new network or Internet connection. To open Control Panel [Network and Internet] Network and Sharing Center Set up a connection or network Description One of the reasons that networking in Windows Vista is so much easier than working in previous Windows versions is this wizard. Answer a series of questions, and you can set up a new network or connection in minutes. Get details about a network connection. To open Control Panel [Network and Internet] Network and Sharing Center View Status Control Panel [Network and Internet] Network and Sharing Center Manage network connections Right-click a connection and select Status Description You can use this screen for wired and wireless networks, although it will be used more frequently for wireless networks because wireless connections require more care and handling than wired connections. They are more apt to be slow because of interference problems, and to disconnect due to interference and other problems. And you're likely to have multiple wireless connections set up on your PCone for work, one for home, and several for your favorite hotspots. The Network Connection Status screen provides you with basic information about your connection to help with troubleshooting, and to help you configure your network and its connection. Access another computer remotely and use it as though you are sitting in front of it. To open Start All Programs Accessories Remote Desktop Connection Command Prompt mstsc Description Remote Desktop Connection allows you to connect to another computer (or allows someone else to connect to your computer) and use it as though you were sitting in front of it. Much more than simply a remote command prompt (like SSH or Telnet), Remote Desktop Connection allows you to see a full Desktop, complete with icons and the Start menu, and even run programs on the remote computer. Work with files stored on a network when you're not connected to it. To open Control Panel [Network and Internet] Offline Files Description The Offline Files dialog lets you turn on (and off) and configure Windows Vista's Offline Files feature, which allows you to work with files stored on a network (either server-based or peer-to-peer), when you're not actually connected to the network. Windows XP also had the capability to work with offline files, but it was so confusing to use and configure that people rarely used it. In Windows Vista, the Offline Files dialog and the Sync Center make the use of offline files far easier. If you use a laptop to connect to your network and would like the ability to work with those files when you're not connected, it's an extremely useful feature. Select a power plan for your laptop. To open Control Panel Change battery settings Control Panel [Mobile PC] Power Options Right-click the battery icon Power Options Command Prompt powercfg.cpl Description When you use a laptop, you're always balancing the need to save power against laptop performance. You want to use the computer as long as possible on a battery charge (for example, if you're on a cross-country airplane trip), but you also want to be as productive as possible when using it. The Power Options Control Panel lets you choose a power plan for your laptop, customize power plans, and change a variety of other power options. Synchronize files and folders with devices and network folders. To open Control Panel [Mobile PC] Sync Center Control Panel [Network and Internet] Sync Center Command Prompt mobsync Description If you have multimedia devices such as MP3 players and iPods, have portable storage devices such as USB flash drives, or work on files on multiple PCs, you know how hard it is to keep all your files in sync on those devices and computers. The Sync Center is Windows Vista's answer. It's the central location for syncing all your devices and network folders. When devices and network folders are synced, Windows Vista copies and updates files and folders in both locations. So, for example, if you've made changes to files on both your PC and the device, Windows Vista will perform actions on both of them so that they have identical files and folders. You can also use the Sync Center for synchronizing files across a network, via offline files. With offline files, you can get access to files on a shared network folder, even if your laptop is not currently connected to the network. Offline files allow you to open files, work on them when you're disconnected, and then update them at a later time when the connection has been reestablished. Control commonly used mobility settings. To open Control Panel Mobile PC Windows Mobility Center Description The Windows Mobility Center Panel offers quick access to turn on and off and customize a variety of commonly used mobility settings.

Windows STOP: unknown hard error with the ntdll.dll file. For example, STOP: C0000221 Unknown Hard Error \SystemRoot\System32\ntdll.dll

Reboot Loop After Installing Windows XP SP3

To solve this problem you have to grab a pen, a piece of paper and the Windows XP Disc. Make a nice drinks or coffee or tea to make you feel relax...

1. Start the computer and keep tapping F8 button when the system starting until you see the "Windows Advanced Options Menu" Please select an option:
select the "Disable automatic restart on system failure" then press enter.

2. Now we're on the Blue Screen Of Death (BSOD) showing the symptom that causes the illness. Write down the name of the file....

3.Put the Windows XP Disc into CD/DVD Drive and press the reset button to restart the computer, then press any key when the system starting for the Windows XP Disc. Now you see a "Window Setup" with blue screen background and please wait until it settle down.

4. Press R for Recovery Console... We are on the "Microsoft Windows XP (TM)Recovery Console" press 1 to log on...then press enter.

5. Administrator Password is the main password when you install the Windows XP. If no main password then press enter.

6. As you can see the "C:\WINDOWS>" This is where we type the DOS COMMAND PARAMETERS....

7. Now we have to make a backup of the file you wrote in the system folder. Type this command parameters;

CD C:\WINDOWS\SYSTEM32\

press enter

RENAME NTDLL.dll NTDLL.orig (change NTDLL.dll to the name of file you wrote)

press enter

8. Then copy the NTDLL.dll from C:\WINDOWS\SERVICEPACKFILES\I386\ to the system folder with the right command parameters:

CD C:\WINDOWS\SERVICEPACKFILES\I386\

press enter

COPY NTDLL.dll C:\WINDOWS\SYSTEM32\

press enter

To restart the computer type EXIT then press enter....enjoy  

How to Solve Write Protected problem on USB

While using computer we regularly face some kind of problem. These are of many kind, by which we gets irritates. On these problem one is of "Write Protected". Write Protected problem usually occurs when you connect any memory card or any USB flash drive and try to send or copy some data on to it.
There is a message popup comes saying that " Cannot copy XXX: The disk is Write Protected, Remove the Write Protection or use another disk."
Some other message you gets are, cannot copy files and folders, drive is write protected, cannot format the drive, remove the write protection or change the media file. So these are some of the common error message that we usually gets.
So here I will tel you how to solve this problem with a simple registry file.
Just follow the simple steps.

• Open Start Menu >> Run (CTRL+R), type regedit and press Enter. This will open the registry editor.
• Navigate to the following path:

           HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies

• Double click the key WriteProtect in the right pane and set the value to 0
• In the Data Value Box, press OK
• Exit Registry, restart your computer and then re-connect your USB pen drive to your computer.