Anda juga bisa cara lainnya.
1. Klik kanan direktori tersebut.
2. setelah menu konteks tampil, pilih “Delete”.
3. Sebelum menutup jendela Registri Editor, tekan tombol “F5” di keyboard untuk memperbaharui isi registri.
4. Tanpa harus me-restart Windows, buka jendela Add or Remove Programs, lalu cari nama aplikasi yang semula sulit untuk dihapus. Pasti saat ini sudah lenyap.

Sumber : Yahoo News

• Set bios komputer anda supaya first boot nya adalah CD drive.
• Masukan CD Installer Windows XP anda, Kemana??? tentu saja ke CDROM/DVDROM Drive bukan ke tempat yang lain.
• Boot komputer anda
• Ketika pilihan press anykey to boot from CD silahkan pijit tombol apa saja, tapi ingat tombol yang ada di keyboard ya bukan tombol kamera digital anda apalagi tombol HP.
• Setelah masuk ke setup menu, nanti ada pilihan untuk tekan R untuk repair, anda tekan huruf R di keyboard anda untuk masuk ke Repair command line.
• Ketika masuk tunggu sebentar jangan langsung enter kecuali kalau anda ingin reboot
• Apabila ditanyakan system mana yang mau anda perbaiki biasanya ada pilihan nomor 1 C:\Windows seperti itu pilih 1 dan enter.
• Nanti anda akan ditanyakan password Administrator komputer anda silahkan di isi dan enter
• Setelah berhasil login silahkan copy NTLDR dan NTDETECT.COM dari CD installer anda. Sebelumnya pastikan dulu apa nama drive CD/DVD anda. Saya contohkan disini bernama E:

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

• Apabila sudah selesai silahkan keluar dari editor dan restart komputer anda
• Jangan lupa untuk set boot order anda menjadi Harddisk pertama.
• Selesai.

But let’s try it the easy way first. The first thing to try is to boot to single user mode. This MIGHT not work for you, because your system might be configured to still ask for a root password to get to single user mode. If that’s the case, we’ll use another trick that replaces init with /bin/bash.

First, try single user. If you don’t see either a LILO or GRUB boot screen, try hitting CTRL-X to get one. If it’s LILO, just type “linux single” and that should do it (assuming that “linux” is the lilo label). If GRUB, hit ‘e”, then select the “kernel” line, hit “e” again, and add ” single” (or just ” 1″) to the end of the line. Press ENTER, and then “b” to boot. (More modern grub uses “a” to append to the boot line)

You should get a fairly normal looking boot sequence except that it terminates a little early at a bash prompt. If you get a “Give root password for system maintenance”, this isn’t going to work, so see the “init” version below.

If you do get the prompt, the / filesystem may not be mounted rw (although “mount” may say it is). Do

mount -o remount,rw / 

If that doesn’t work (it might not), just type “mount” to find out where “/” is mounted. Let’s say it is on /dev/sda2. You’d then type:

mount -o remount,rw /dev/sda2 

Note that you might have to specify a filesystem type: “mount -o remount,rw -t ext3 /dev/sda2″, for example.

If you can do this, just type “passwd” once you are in and reset it to whatever you like. Or just edit /etc/shadow to remove the password field: move to just beyond the first “:” and remove everything up to the next “:”. With vi, that would be “/:” to move to the first “:”, space bar once, then “d/:” and ENTER. You’ll get a warning about changing a read-only file; that’s normal. Before you do this, /etc/shadow might look like:

root:$1$8NFmV6tr$rT.INHxDBWn1VvU5gjGzi/:12209:0:99999:7:-1:-1:1074970543 
bin:*:12187:0:99999:7::: 
daemon:*:12187:0:99999:7::: 
adm:*:12187:0:99999:7::: 

and after, the first few lines should be:

root::12209:0:99999:7:-1:-1:1074970543 
bin:*:12187:0:99999:7::: 
daemon:*:12187:0:99999:7::: 
adm:*:12187:0:99999:7::: 

You’ll need to force the write: with vi, “:wq!”. (If that still doesn’t work, you needed to do the -o remount,rw, see above). If it does work, you have reset root to not have a password. You’ll want to change that soon, of course.

Another trick is to add “init=/bin/bash” (LILO “linux init=/bin/bash” or add it to the Grub “kernel” line). This will dump you to a bash prompt much earlier than single user mode, and a lot less has been initialized, mounted, etc. You’ll definitely need the “-o remount,rw” here. Also note that other filesystems aren’t mounted at all, so you may need to mount them manually if you need them. Look in /etc/fstab for the device names or use “fdisk -l” to list available partitions.

Keep this in mind if you have a Linux machine in a publically accessible place : without more protection, it’s not usually hard to recover a lost root password, which means it’s just as easy for someone to CHANGE it, or access root without your knowlege. The only difference between “break root” and this is intent. Hacking root’s password can be accomplished with these same methods, so if you want to protect your machine, you may want to close these off.

Another way to reset a lost password is to remove the password from /etc/shadow. Just in case you screw up, I’d copy it somewhere safe first. You want to end up with the root line looking something like this:

# original line 
root:$1$EYBTVZHP$QtjkCG768giXzPvW4HqB5/:12832:0:99999:7::: 
# after editing 
root::12832:0:99999:7::: 

If you are having trouble with editing (you really do have to learn vi one of these days), you could just (after making a copy, of course) just

echo  ”root::12832:0:::::” > /mnt/etc/shadow  
or, if you were in single user mode 
echo  ”root::12832:0:::::” > /etc/shadow  

and then fix things up when rebooted.

If using something like “linux rescue” or other boot media, if the recovery disk doesn’t automatically mount your disk, you need to do it manually. This shouldn’t be difficult unless you have an unusual disk controller. For example, a Compaq raid controller will probably be /dev/ida/c0d0. Find the partitions by using fdisk /dev/ida/c0d0 (just “p” and quit) and then mount what you need.

Consider that nowadays a USB stick can be boot media.

If all else fails, consider that you can pull this drive (or install another drive in this machine) and mount it from another running Linux. Then recover/reset the root password as explained above.

If you’ve booted from other media, you may also be able to “chroot” to your original device and then use “passwd” to fix things up. Say you have the old drive at “/old” – type “chroot /old” and then use “passwd”.

source : http://aplawrence.com/Linux/lostlinuxpassword.html

2. Keep your eye on the screen messages for booting to your CD Typically, it will be “Press any key to boot from CD

3. Once you get in, the first screen will indicate that Setup is inspecting your system and loading files.

4. When you get to the Welcome to Setup screen, press ENTER to Setup Windows now

5. The Licensing Agreement comes next – Press F8 to accept it.

6. The next screen is the Setup screen which gives you the option to do a Repair.
It should read something like “If one of the following Windows XP installations is damaged, Setup can try to repair it”
Use the up and down arrow keys to select your XP installation (if you only have one, it should already be selected) and press R to begin the Repair process.

7. Let the Repair run. Setup will now check your disks and then start copying files which can take several minutes.

8. Shortly after the Copying Files stage, you will be required to reboot. (this will happen automatically – you will see a progress bar stating “Your computer will reboot in 15 seconds”

9. During the reboot, do not make the mistake of “pressing any key” to boot from the CD again! Setup will resume automatically with the standard billboard screens and you will notice Installing Windows is highlighted.

10. Keep your eye on the lower left hand side of the screen and when you see the Installing Devices progress bar, press SHIFT + F10. This is the security hole! A command console will now open up giving you the potential for wide access to your system.

11. At the prompt, type NUSRMGR.CPL and press Enter. Voila! You have just gained graphical access to your User Accounts in the Control Panel.

12. Now simply pick the account you need to change and remove or change your password as you prefer. If you want to log on without having to enter your new password, you can type control userpasswords2 at the prompt and choose to log on without being asked for password. After you’ve made your changes close the windows, exit the command box and continue on with the Repair (have your Product key handy).

13. Once the Repair is done, you will be able to log on with your new password (or without a password if you chose not to use one or if you chose not to be asked for a password). Your programs and personalized settings should remain intact.

source : http://www.raymond.cc/blog/archives/2006/10/22/reset-or-change-administrator-password-on-windows-xp/

Click Start then Run. Type regedit and then find this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Intel\LANDesk\VirusProtect6\CurrentVersion\PatternManager.

Right click on LockUpdatePattern and select Modify.

Change value from a 1 to a 0.

Close the Registry Editor and open Symantec Antivirus. The LiveUpdate should be unlocked now. You may need to reboot your system in order to run LiveUpdate.

source : http://www.simplepctalk.com/programs/liveupdate-locked-cant-update-symantec-antivirus/

1. In Control Panel, double-click Users and Passwords.
2. Click to clear the Users must enter a user name and password to use this computer check box.

   NOTE: This option does not appear on a system that is a member of a domain.

3. Click the Advanced tab.
4. Click to clear the Require users to press Ctrl-Alt-Del before logging on check box.

Automatic logon is not supported when you are logging on to a domain. You will need to join a workgroup if you want to use the automatic logon feature. 

You can also turn on the automatic logon feature in all versions of the Windows 2000 product family by editing the registry.

WARNING: This procedure will allow the user to log on automatically to the domain. This could cause a serious security problem. Anyone booting this system with this registry modification will be logged on to the system with the user’s security credentials.

1. Start Regedt32.exe and locate the following registry key:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
2. Establish your domain name, account name, and password, using the values you would normally type when logging on. You should assign the following values: DefaultDomainName, DefaultUserName, and DefaultPassword.

   NOTE: The DefaultDomainName and DefaultUserName values may already exist. The DefaultPassword value may not. If it does not, create it. To do so:

   1. On the Edit menu, click Add Value.
   2. In the Value Name box, type DefaultPassword.
   3. In the Data Type box, click REG_SZ.
   4. Click OK.
   5. In the String Editor box, type your password. Click OK and save your changes. 

      NOTE: If no DefaultPassword string is specified, Windows automatically changes the value of the AutoAdminLogon key from 1 (true) to 0 (false). This disables the AutoAdminLogon feature. This behavior also occurs if the DefaultPassword string is specified but the password is left blank or null.

3. On the Edit menu, click Add Value. Type AutoAdminLogon in the Value Name box. Click REG_SZ in the Data Type box. Enter 1 in the String box. Save your changes.
4. Quit Regedt32.exe.
5. Shut down Windows and turn off the computer.
6. Restart your computer and Windows 2000. You should be able to log on automatically now. 

   Note that this setting only applies to the first logon. To enforce this setting for subsequent logoffs, the administrator must configure the following setting:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon

   Value: ForceAutoLogon
   Type: REG_SZ
   Data: 1

You can install the Recovery Console on your computer to make it available if you cannot restart Windows.

To run the Recovery Console from the Windows XP startup disks or the Windows XP CD-ROM, follow these steps:

1. Insert the Windows XP startup disk into the floppy disk drive, or insert the Windows XP CD-ROM into the CD-ROM drive, and then restart the computer. Click to select any options that are required to start the computer from the CD-ROM drive if you are prompted.
2. When the “Welcome to Setup” screen appears, press R to start the Recovery Console.
3. If you have a dual-boot or multiple-boot computer, select the installation that you must access from the Recovery Console.
4. When you are prompted, type the Administrator password. If the administrator password is blank, just press ENTER.
5. At the command prompt, type the appropriate commands to diagnose and repair your Windows XP installation.
6. For a list of commands that are available in Recovery Console, type recovery console commands or help at the command prompt, and then press ENTER. 
7. To exit the Recovery Console and restart the computer, type exit at the command prompt, and then press ENTER.

#Recovery Console Commands#

Here are the available commands that can be used with the Windows Recovery Console.

ATTRIB

Use the attrib command with one or more of the following parameters to change the attributes of a file or a folder:

BATCH

batch inputfile [outputfile]

Use this command to run commands that are specified in a text file. In the command syntax, inputfile specifies the text file that contains the list of commands to be run, and outputfile specifies the file that contains the output of the specified commands. If you do not specify an output file, the output appears on the screen.

BOOTCFG

Use this command for boot configuration and recovery.

CD and CHDIR

Use the cd and chdir commands to change to a different folder.

CHKDSK

chkdsk drive /p /r

The chkdsk command checks the specified drive and repairs or recovers the drive if the drive requires it. The command also marks any bad sectors and it recovers readable information. The /p switch runs Chkdsk even if the drive is not flagged as dirty. The /rswitch locates bad sectors and recovers readable information. This switch implies /p. Chkdsk requires Autochk. Chkdsk automatically looks for Autochk.exe in the startup folder. If Chkdsk cannot find the file in the startup folder, it looks for the Windows 2000 Setup CD-ROM. If Chkdsk cannot find the installation CD-ROM, Chkdsk prompts the user for the location of Autochk.exe.

CLS

Use this command to clear the screen.

COPY

copy source destination

Use this command to copy a file.

DEL and DELETE

del drive: path filename

delete drive: path filename

Use this command to delete a file.

DIR

dir drive: path filename

Use this command to display a list of files and subfolders in a folder.

DISABLE

disable servicename

Use this command to disable a Windows system service or driver. The variable service_or_driver is the name of the service or driver that you want to disable. When you use this command to disable a service, the command displays the service’s original startup type before it changes the type to SERVICE_DISABLED. Note the original startup type so that you can use the enable command to restart the service.

DISKPART

diskpart /add /delete device_name drive_name partition_name size

Use this command to manage the partitions on your hard disk volumes.

ENABLE

enable servicename start_type

You can use the enable command to enable a Windows system service or driver. The variable service_or_driver is the name of the service or driver that you want to enable, and start_type is the startup type for an enabled service. The startup type uses one of the following formats:

EXIT

Use the exit command to quit the Recovery Console.

EXPAND

expand source [/F:filespec] [destination] [/y]

expand source [/F:filespec] /D

Use this command to expand a file. The variable source is the file that you want to expand. By default, you cannot use wildcard characters. The variable destination is the directory for the new file. By default, the destination cannot be removable media and cannot be read-only. You can use the attrib command to remove the read-only attribute from the destination directory. The option /f:filespec is required if the source contains more than one file. This option permits wildcard characters. The /y switch disables the overwrite confirmation prompt. The /d switch specifies that the files will not be expanded and displays a directory of the files in the source.

FIXBOOT

fixboot drive name:

Use this command to write the new Windows boot sector code on the system partition.

FIXMBR

fixmbr device name

Use this command to repair the MBR of the boot partition.

FORMAT

format drive: /Q /FS:file-system

Use this command to format the specified drive to the specified file system.

LISTSVC

The listsvc command lists all available services, drivers, and their start types for the current Windows installation.

LOGON

The logon command lists all detected installations of Windows and then requests the local administrator password for the copy of Windows that you want to log on to.

MAP

map arc

Use this command to list drive letters, file system types, partition sizes, and mappings to physical devices.

MD and MKDIR

The md and mkdir commands create new folders.

MORE

more filename

Use this command to display a text file to the screen.

RD and RMDIR

Use rd and rmdir commands to delete a folder.

REN and RENAME

Use the ren and rename commands to rename a file.

SET

You can use the set to display or modify four environment options.

SYSTEMROOT

The systemroot command sets the current working folder to the %SystemRoot% folder of the Windows installation that you are currently logged on to.

TYPE

type filename

Use the type command to display a text file.

#Recovery Console Rules#

Several environment rules are in effect while you are working in the Recovery Console. Typeset to see the current environment. By default, these are the rules:

• AllowAllPaths = FALSE prevents access to directories and subdirectories outside the system installation that you selected when you entered the Recovery Console.
• AllowRemovableMedia = FALSE prevents access to removable media as a target for copied files.
• AllowWildCards = FALSE prevents wildcard support for commands such as copy anddel.
• NoCopyPrompt = FALSE means that you are prompted by the Recovery Console for confirmation when overwriting an existing file.