For Blocking USB Storage

For blocking usb storage in u r pc follow the below steps.. It will block pen drives, usb hard disk etc...

If a USB storage device is already installed on the computer

If a USB storage device is already installed on the computer, set the Start value in the following registry key to 4:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

When you do this, the USB storage device does not work when the user connects the device to the computer. To set the Start value, follow these steps:

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Locate and then click the following registry key:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor
4. In the details pane, double-click Start.
5. In the Value data box, type 4, click Hexadecimal (if it is not already selected), and then click OK.
6. Exit Registry Editor.
7. Restart Computer..

If a USB storage device is not already installed on the computer

If a USB storage device is not already installed on the computer, assign the user or the group and the local SYSTEM account Deny permissions to the following files:

• %SystemRoot%\Inf\Usbstor.pnf
• %SystemRoot%\Inf\Usbstor.inf

When you do this, users cannot install a USB storage device on the computer. To assign a user or group Deny permissions to the Usbstor.pnf and Usbstor.inf files, follow these steps:

1. Start Windows Explorer, and then locate the %SystemRoot%\Inf folder.
2. Right-click the Usbstor.pnf file, and then click Properties.
3. Click the Security tab.
4. In the Group or user names list, add the user or group that you want to set Denypermissions for.
5. In the Permissions for UserName or GroupName list, click to select the Deny check box next to Full Control.
   
   Note Also add the System account to the Deny list.
6. In the Group or user names list, select the SYSTEM account.
7. In the Permissions for UserName or GroupName list, click to select the Deny check box next to Full Control, and then click OK.
8. Right-click the Usbstor.inf file, and then click Properties.
9. Click the Security tab.
10. In the Group or user names list, add the user or group that you want to set Denypermissions for.
11. In the Permissions for UserName or GroupName list, click to select the Deny check box next to Full Control.
12. In the Group or user names list, select the SYSTEM account.
13. In the Permissions for UserName or GroupName list, click to select the Deny check box next to Full Control, and then click OK.

Hard disk serial number changer

Click the below link and install the software. you can easily change your hard disk serial number

http://www.xboxharddrive.com/freeware.html

MAC Address Changer

Click the below link and install the software... you can easily change your system mac

http://www.softpedia.com/dyn-postdownload.php?p=83432&t=0&i=1

How to Fix NTLDR is Missing

Issue:

NTLDR is Missing.


Related errors:

Below are the full error messages that may be seen when the computer is booting.

NTLDR is Missing
Press any key to restart

Boot: Couldn't find NTLDR
Please insert another disk

NTLDR is missing 
Press Ctrl Alt Del to Restart

Causes:

1.    Computer is booting from a non-bootable source.

2.    Computer hard disk drive is not properly setup in BIOS.

3.    Corrupt NTLDR and/or NTDETECT.COM file.

4.    Misconfiguration with the boot.ini file.

5.    Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT 32.

6.    New hard disk drive being added.

7.    Corrupt boot sector / master boot record.

8.    Seriously corrupted version of Windows 2000 or Windows XP.

9.    Loose or Faulty IDE/EIDE hard disk drive cable.

10.                        Failing to enable USB keyboard support in the BIOS.

Solutions:

Windows XP users

1.    Insert the Windows XP bootable CD into the computer.

2.    When prompted to press any key to boot from the CD, press any key.

3.    Once in the Windows XP setup menu press the "R" key to repair Windows.

4.    Log into your Windows installation by pressing the "1" key and pressing enter.

5.    You will then be prompted for your administrator password, enter that password.

6.    Copy the below two files to the root directory of the primary hard disk. In the below example we are copying these files from the CD-ROM drive letter, which in this case is "e." This letter may be different on your computer.

copy e:\i386\ntldr c:\
copy e:\i386\ntdetect.com c:\

7.    Once both of these files have been successfully copied, remove the CD from the computer and reboot.

Windows 2000 users

If your computer is using Microsoft Windows 2000 and you are encountering the NTLDR error. Create the below boot.ini file on the floppy diskette drive.

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect

Copy the NTLDR and NTDETECT.COM files from another computer using the same operating system. Both of these files are located in the  root directory of the primary hard disk drive. For example, C:\NTLDR and C:\NTDETECT.COM should be the locations of these files on many computers.

·            Please keep in mind that these files are hidden system files, if you need additional help with viewing hidden files in Windows please see hidden files.

Once these files have been copied to a floppy diskette reboot the computer and copy the NTLDR and NTDETECT.COM files to the root directory of the primary hard disk drive. Below is an example of what commonly should be performed from the A:\> drive.

copy ntldr c:
copy ntdetect.com c:

After the above two files have been copied, remove the floppy diskette and reboot the computer.

How to Uninstall Deep freeze

Deep Freeze, by Faronics, is an application available for the Microsoft Windows, Mac OS X, and SUSE Linux operating systems which allowssystem administrators to protect the core operating system and configuration files on a workstation or server by restoring a computer back to its original configuration each time the computer restarts.<sup>[1]


To uninstall the software Deep Freeze must first be disabled and then uninstalled.
To disable Deep Freeze:</sup>

1. Hold down the shift key and double-click on the Deep Freeze icon. Alternatively, you can press Crtl-Alt-Shift-F6. You should now see a password dialog.
2. Enter your password and click OK. If you have not yet entered a password you should be able to click OK without entering anything. You should now see a dialog with boot options.
3. Select "Boot thawed" and click OK. This will disable Deep Freeze on the next reboot.
4. Reboot your machine. After the machine reboots you are ready to uninstall Deep Freeze.

To uninstall:

1. Locate the installation file you used to install Deep Freeze to this machine. By default the name of this file is called "DF5Std.exe" for versions 5.X and "DF6Std.exe" for versions 6.X.
2. Run the installation file (DF5Std.exe or DF6Std.exe).
3. Select the option to "Uninstall"
4. The software should uninstall and reboot the machine. When the machine reboots, Deep Freeze should be uninstalled.

Restrict users to enter the drives (d:\, e:\ etc) on your system..

Follow these steps to block other users to enter your drives..

Go to --> My Computer -->
Right Click on D Drive (the drive u want to block) and Click Properties

--> On security tab ---> Click Advance---> Remove All users and Add those people u want to allow--->Mark the below line (replace permission....................)

---> On Owner tab ---> Select the user and mark the below line---> Apply ----> Ok

---> Go to Security tab on properties of D Drive ---> Add Those people u want to allow and set their permissions below......----> Apply---->Ok

How to Remove Autorun..

Your Drives (D:\, E:\ etc) Not Open ??? Like this.........

Then u r computer effect the problem of autorun.inf

Follow the set of commands below to show and delete the autorun.inf

1. Open Start>>Run and type cmd and press enter. This will open a command prompt window. On this command prompt window type the following steps.

2. type cd\

3. type attrib -r -h -s autorun.inf

4. type del autorun.inf

5. now type d: and press enter for d: drive partition. Now repeat steps 3 and 4. Similarly repeat step 5 for all your hard disk partition.

Restart your system and your trouble will be fixed.

Restart your system and your trouble will be fixed.