Windows XP SP2 Repair

Possible corrupt operating system. The cause of corrupt operating system is Windows file corrupted or virus infected Windows.

Solution corrupt Windows files:
1. START - All Programs - Accessories - System Tools - System Recovery Options - System Restore (restore to the date when the OS is still normal)
2. START - All Programs - Accessories - System Tools - System Recovery Options - System Image Recovery (restore using a backup system that you created)

Solution files corrupted due to virus infected windows
Update anti-virus and virus scan (if the virus is detected, the primary action = repair, secondary action = quarantine). Then repair the operating system with System Restore or System Recovery Options.
Note:
If the operating system infected with virus (virus infected not long ago), the best solution is to use System Restore. Restore to a date when the windows are still normal.

When you start your computer, you may receive one of the following error messages:

• STOP: 0x0000007B (parameter1, parameter2, parameter3, parameter4)
  INACCESSIBLE_BOOT_DEVICE
• Setup has encountered a fatal error that prevents it from continuing.
  
  Contact your product support representative for assistance. The following status will assist them in diagnosing the problem.
  
  (0x4, 0x1, 0, 0)
  
  Setup cannot continue. Power down or reboot your computer now.

You may also receive a "Stop 0x0000007B" error message during Windows XP Setup when the Setup program restarts during the installation process. When you receive a Stop error while the Setup program is running, you receive the second error message. To troubleshoot this issue, read the following four sections to determine if any one of the issues applies to you. If none of the issues apply to you, use the following general troubleshooting steps at the end of the article. Back to the top Boot-Sector Viruses You may receive a "Stop 0x0000007B" error message if your computer is infected with a boot-sector virus. If the problem is intermittent and you can start Windows, check your computer for viruses. If you find a virus, also check any floppy disks for viruses before you use them again.

For a list of antivirus software manufacturers, click the following article number to see the article in the Microsoft Knowledge Base: 49500 List of Antivirus Software Vendors Note You may have to use more than one brand of virus-detection software to detect and remove various viruses.

Important If your computer has been infected, it may be open to additional forms of attack. We recommend that you rebuild infected Internet-facing servers by following the guidelines that are published on the CERT Web site. Internet-facing servers are servers that function without a firewall or other protection. It is also a good idea to rebuild any other computers that are at risk because of their proximity to infected computers before you put them back in service.

If a virus has infected your Windows XP-based computer and a virus-detection program cannot remove the virus and repair the system, you must repartition and format your hard disk and reinstall Windows XP. For additional information about partitioning and formatting a hard disk with Windows XP, click the following article number to view the article in the Microsoft Knowledge Base: 313348 How to partition and format a hard disk in Windows XP For more information about how to help protect the boot sector from viruses in Windows XP, click the following article number to view the article in the Microsoft Knowledge Base: 122221 How to protect boot sector from viruses in Windows Back to the top Device Driver IssuesYou may receive a "Stop 0x0000007B" error message in the following scenarios:

• A device driver that the computer boot controller needs is not configured to start during the startup process.
• A device driver that the computer boot controller needs is corrupted.
• Information in the Windows XP registry (information related to how the device drivers load during startup) is corrupted.

Windows XP requires a miniport driver to communicate with the hard disk controller that is used to start your computer. If Windows XP does not supply a device driver for your controller or if Windows XP is using a corrupted or incompatible driver, you must replace the driver with a valid copy that is compatible with your controller and Windows XP.

During the first phase of the Windows XP installation, Setup displays the following message at the bottom of the screen: Press F6 if you have to install a third-party SCSI or RAID driver. Press F6 and then follow the instructions to install a mass-storage device driver from your Original Equipment Manufacturer (OEM). For additional information about using F6 to load an OEM device driver to support, click the following article number to view the article in the Microsoft Knowledge Base: General Troubleshooting If none of the issues that have been described in this article apply to you, use the following general troubleshooting steps:

1. If you receive one of these error messages while you are installing Windows XP, update the computer BIOS or obtain Windows XP drivers for your hard disk controller (from the manufacturer of your computer, system board, or hard disk controller), or do both. For information about how to update your computer's BIOS or obtain Windows XP drivers, contact your computer manufacturer. For additional information about the availability of drivers, see the Device Driver Issues section in this article.
   
   Note: If Windows NT 4.0 or Windows 2000 was installed previously on a mirrored boot partition, see the Other Issues section in this article.
2. Use the Last Known Good Configuration feature. This may resolve the problem if you recently installed an incompatible device driver for your boot controller. For additional information about using the Last Known Good Configuration feature, click the following article number to view the article in the Microsoft Knowledge Base: 307852 How To start your computer by using the Last Known Good Configuration feature in Windows XP
3. Use the Repair option with Windows XP Setup. For additional information about repairing Windows XP by using the Setup program, click the following article number to view the article in the Microsoft Knowledge Base: 315341 How to perform an in-place upgrade (reinstallation) of Windows XP
4. Restore a registry backup. For additional information about restoring a registry backup, click the following article number to view the article in the Microsoft Knowledge Base: 307545 How to recover from a corrupted registry that prevents Windows XP from starting

Resolution : Fallow method 1 or method 2 no data will be deleted.To resolve this issue, you must have the Windows XP CD-ROM. If you do not have the Windows XP CD-ROM available,

If you have the Windows XP CD-ROM, use one of the following methods. Method 1: Troubleshoot the specific element that causes Windows not to loadNote This option requires that you perform multiple steps to determine the exact element that causes the issue. This option may allow for you to keep customizations in Windows.

1. Restart your computer in safe mode. To do this, press the F8 key while Windows is starting. Then, create a Windows XP boot disk to start the computer.
   
   For more information about how to create a Windows XP boot disk, click the following article number to view the article in the Microsoft Knowledge Base: 305595 How to create a bootable floppy disk for an NTFS or FAT partition in Windows XP 315222 A description of the Safe Mode Boot options in Windows XPIf you can start the computer from the boot disk without receiving an error message, the damage is limited to the master boot record, the boot sector, or the NTLDR file. After Windows XP is running, immediately back up all data before you try to fix the boot sector.
   
   Use Disk Management to view the partition information and to verify that the disk partition (or partitions) is correct. To use Disk Management, follow these steps:
   1. Click Start, right-click My Computer, and then click Manage.
   2. Expand Storage, and then click Disk Management.
   If invalid partitions are present or you cannot start your computer by using a boot disk, consider reinstalling Windows XP on your computer and restoring your data and configuration information from a recent backup.
   
   If you do not have a current backup copy of the data on the computer, contact a computer specialist to determine the best method of data recovery and configuration.
2. Run a current virus scanning program to verify that no virus is present.( In safe mode)
3. Repair the master boot record by using the FIXMBR command from the Windows XP Recovery Console.
   
   For more information about how to use the Recovery Console, click the following article number to view the article in the Microsoft Knowledge Base: 307654 How to install and use the Recovery console in Windows XPNote For more information about an error message that you may receive when you use the FIXMBR command, click the following article number to view the article in the Microsoft Knowledge Base: 266745 Error message when you run fixmbr commandWarning If your computer is infected with a virus and you use the FIXMBR command, you may be unable to start the computer. Before you use this command, make sure that the computer is not infected with a virus.
4. If the primary boot partition is a FAT partition, use the FIXBOOT command from the Windows XP Recovery Console to write a new boot sector on the system partition, and then use the FIXMBR command to repair the master boot record.

Method 2: Repair your Windows installationNote Repairing your Windows installation may change the configuration of Windows. You may also have to follow this step if you complete all the troubleshooting in steps option 1 and the problem is not resolved.

1. Use the Windows XP CD-ROM to start your computer. On the Welcome to Setup screen, press ENTER to set up Windows XP.
2. Press F8 to agree to the license agreement.
3. Use the ARROW keys to select the Windows XP installation that you want to repair, and then press R.
   
   Windows XP Setup repairs the installation files, Windows XP automatically restarts, and then the Setup program finishes the repair of your Windows XP installation.
4. Follow the remaining steps to set up Windows.
   
   Note You must have your 25-character product key to complete these steps.
5. As soon as this issue is resolved, make sure that the firewall is enabled, and then visit the following Microsoft Web site to reinstall the latest updates: http://windowsupdate.microsoft.com/
6. Run a virus scan on the computer because problems with corrupted elements can be attributed to viruses.

Put in your recovery disk and restart the computer a clean install of windows will format the hard drive automatically! If you don''t have the recovery disk you'll need a windows disk to do the same.
Do you have it set to FAT32 or NTFS? If it's FAT32 you can pop in a windows 98 rescue disk and restart the computer with CD support type in A: and enter then you type in like this A:\ format C: /s
and it will prompt you to carry on by selecting Y for yes hit enter and start formatting.
You then have to remove the floppy put in your windows disk or rescue disk(which has windows XP on it) and restart and select install at the following prompts etc
You can reboot to Safe mode alternatively(restart and hit F8 when POST messages are displayed) and scroll up to safe mode and enter. If you have an anti virus software program installed you can run a scan and remove any possible viruses that way or if you know what the virus is use the search function and find and delete the infected files!

Hp Support ---->Link.
or :
Cause 1 This issue may occur if you have a CD, a DVD or a floppy disk in your CD, DVD, or floppy drive when you start the computer. Cause 2 This issue occurs if one or more of the following elements are corrupted and will not load during the boot sequence of the computer:

• Master boot record
• Partition tables
• Boot sector
• NTLDR file

Method 1: Troubleshoot the specific element that causes Windows not to loadNote This option requires that you perform multiple steps to determine the exact element that causes the issue. This option may allow for you to keep customizations in Windows.

1. Restart your computer in safe mode. To do this, press the F8 key while Windows is starting. Then, create a Windows XP boot disk to start the computer.
   
   For more information about how to create a Windows XP boot disk, click the following article number to view the article in the Microsoft Knowledge Base: 305595 (http://support.microsoft.com/kb/305595/ ) How to create a bootable floppy disk for an NTFS or FAT partition in Windows XP 315222 (http://support.microsoft.com/kb/315222/ ) A description of the Safe Mode Boot options in Windows XP If you can start the computer from the boot disk without receiving an error message, the damage is limited to the master boot record, the boot sector, or the NTLDR file. After Windows XP is running, immediately back up all data before you try to fix the boot sector.
   
   Use Disk Management to view the partition information and to verify that the disk partition (or partitions) is correct. To use Disk Management, follow these steps:
   1. Click Start, right-click My Computer, and then click Manage.
   2. Expand Storage, and then click Disk Management.
   If invalid partitions are present or you cannot start your computer by using a boot disk, consider reinstalling Windows XP on your computer and restoring your data and configuration information from a recent backup.
   
   If you do not have a current backup copy of the data on the computer, contact a computer specialist to determine the best method of data recovery and configuration.
2. Run a current virus scanning program to verify that no virus is present.
3. Repair the master boot record by using the FIXMBR command from the Windows XP Recovery Console.

MICROSOFT STOPED SUPPORTING XP SP2 YOU SHOULD UPGRADE YOUR SYSTEM AND ALL YOUR SOFTWARES WILL WORKS
DONT FORGET TO RATE

This is a common virus attack that will throw you out everytime you login, or licensing issues

For virus problem is bit tricky and needs to deal with registry settings and also need network computer

Try following

Log on to a networked computer.
Run Regedit.exe
Point your cursor to HKEY_LOCAL_MACHINE
Select File > Connect Remote Registry
Type computer name (infected computer)
Navigate to the following location in registry of destination or infected computer

HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon

Edit below two values in right pane:

Shell
Userinit

Change the two values to
Shell=explorer.exe
Userinit = c:\windows\system32\userinit.exe
close the Registry
Restart Infected computer.
You should be able to log on to computer. if it not work then go to back steps and just copy and overwrite the file userinit.exe from installation source.

if you got two harddrives or two partions make sure that you only have one os installed.you can try reinstalling it again or zero your drive.(fdisk)this will right zeros to your disk and destroy all data,including virus.before doing any of this go start-right click my computer-properties-advanced tab-start up and recovery colum and make sure there is only one option
under the defult operating systems if there is two that could be your problem,click edit and determine wich is the new os.if there is only one try reinstalling or zero all drives(backup all data first)

This issue may occur if one of the following conditions is true: Cause 1 loadTOCNode(3, 'cause'); This issue may occur if you have a CD, a DVD or a floppy disk in your CD, DVD, or floppy drive when you start the computer. Cause 2 loadTOCNode(3, 'cause'); This issue occurs if one or more of the following elements are corrupted and will not load during the boot sequence of the computer:

• Master boot record
• Partition tables
• Boot sector
• NTLDR file

To resolve this issue, follow these steps. Resolution for Cause 1 loadTOCNode(3, 'resolution'); To resolve this issue, remove the media in your CD, DVD, or floppy drive and then restart the computer. Back to the top Advanced troubleshooting loadTOCNode(2, 'resolution'); This section is intended for advanced computer users. If you are not comfortable with advanced troubleshooting, you might want to ask someone for help or contact support. For information about how to do this, visit the following Microsoft Web site: http://support.microsoft.com/contactus/ (http://support.microsoft.com/contactus/) Resolution for Cause 2 loadTOCNode(3, 'resolution'); To resolve this issue, you must have the Windows XP CD-ROM. If you do not have the Windows XP CD-ROM available, you have to call your computer manufacturer to troubleshoot the issue.

If you have the Windows XP CD-ROM, use one of the following methods. Method 1: Troubleshoot the specific element that causes Windows not to load loadTOCNode(4, 'resolution'); Note This option requires that you perform multiple steps to determine the exact element that causes the issue. This option may allow for you to keep customizations in Windows.

1. Restart your computer in safe mode. To do this, press the F8 key while Windows is starting. Then, create a Windows XP boot disk to start the computer.
   
   For more information about how to create a Windows XP boot disk, click the following article number to view the article in the Microsoft Knowledge Base: 305595 (http://support.microsoft.com/kb/305595/ ) How to create a bootable floppy disk for an NTFS or FAT partition in Windows XP 315222 (http://support.microsoft.com/kb/315222/ ) A description of the Safe Mode Boot options in Windows XP If you can start the computer from the boot disk without receiving an error message, the damage is limited to the master boot record, the boot sector, or the NTLDR file. After Windows XP is running, immediately back up all data before you try to fix the boot sector.
   
   Use Disk Management to view the partition information and to verify that the disk partition (or partitions) is correct. To use Disk Management, follow these steps:
   1. Click Start, right-click My Computer, and then click Manage.
   2. Expand Storage, and then click Disk Management.
   If invalid partitions are present or you cannot start your computer by using a boot disk, consider reinstalling Windows XP on your computer and restoring your data and configuration information from a recent backup.
   
   If you do not have a current backup copy of the data on the computer, contact a computer specialist to determine the best method of data recovery and configuration.
2. Run a current virus scanning program to verify that no virus is present.
3. Repair the master boot record by using the FIXMBR command from the Windows XP Recovery Console.
   
   For more information about how to use the Recovery Console, click the following article number to view the article in the Microsoft Knowledge Base: 307654 (http://support.microsoft.com/kb/307654/ ) How to install and use the Recovery console in Windows XP Note For more information about an error message that you may receive when you use the FIXMBR command, click the following article number to view the article in the Microsoft Knowledge Base: 266745 (http://support.microsoft.com/kb/266745/ ) Error message when you run fixmbr command Warning If your computer is infected with a virus and you use the FIXMBR command, you may be unable to start the computer. Before you use this command, make sure that the computer is not infected with a virus.
4. If the primary boot partition is a FAT partition, use the FIXBOOT command from the Windows XP Recovery Console to write a new boot sector on the system partition, and then use the FIXMBR command to repair the master boot record.

Method 2: Repair your Windows installation loadTOCNode(4, 'resolution'); Note Repairing your Windows installation may change the configuration of Windows. You may also have to follow this step if you complete all the troubleshooting in steps option 1 and the problem is not resolved.

1. Use the Windows XP CD-ROM to start your computer. On the Welcome to Setup screen, press ENTER to set up Windows XP.
2. Press F8 to agree to the license agreement.
3. Use the ARROW keys to select the Windows XP installation that you want to repair, and then press R.
   
   Windows XP Setup repairs the installation files, Windows XP automatically restarts, and then the Setup program finishes the repair of your Windows XP installation.
4. Follow the remaining steps to set up Windows.
   
   Note You must have your 25-character product key to complete these steps.
5. As soon as this issue is resolved, make sure that the firewall is enabled, and then visit the following Microsoft Web site to reinstall the latest updates: http://windowsupdate.microsoft.com/ (http://windowsupdate.microsoft.com/)
6. Run a virus scan on the computer because problems with corrupted elements can be attributed to viruses.

after removing the virus ... some of the system file has became unstable .... so you are facing this type of problem ....
so the solution is to reinstall the windows xp professional sp2 again ....
if you have very important programs which you dont have back up then just you have to do is you start the set up by boot disk of windows xp sp2 (actually all windows cd s will be the boot disk only if we just copy the exact windows cd with out changing anything especially "cdlabel")
so just insert the boot disk cd in to the drive and make the boot from cd (it must be done b4 os loads) so just have the check in bios that the first boot device is cdrom and then boot the set from cd then it will ask "press enter to install winxp" you must press enter then after it will detect the partitions for "previously installed operating system" if it detect the installed "windows xp" means they it will prompt for repair option here... you must press R here ... if you press R at the first time before detecting i mean in the previous step than this means it will take you to recovery console ....
so besure to follow these steps....
after giving repair it will repair and ur problem will be solved