These two errors have similar causes and the same troubleshooting steps apply to both of them. These stop codes always occur during the startup process. When you encounter one of these stop codes, the following has happened:

1. The system has completed the Power-On Self-Test (POST).
2. The system has loaded NTLDR and transferred control of the startup process to NTOSKRNL (the kernel).
3. NTOSKRNL is confused. Either it cannot find the rest of itself, or it cannot read the file system at the location it believes it is stored.

When troubleshooting this error, your task is to find out why the Windows kernel is confused and fix the cause of the confusion.

Things to check:

• The SATA controller configuration in the system BIOS If the SATA controller gets toggled from ATA to AHCI mode (or vice versa), then Windows will not be able to talk to the SATA controller because the different modes require different drivers. Try toggling the SATA controller mode in the BIOS.
• RAID settings You may receive this error if you’ve been experimenting with the RAID controller settings. Try changing the RAID settings back to Autodetect (usually accurate).
• Improperly or poorly seated cabling Try reseating the data cables that connect the drive and its controller at both ends.
  Hard drive failure Run the built-in diagnostics on the hard drive. Remember: Code 7 signifies correctable data corruption, not disk failure.
• File system corruption Launch the recovery console from the Windows installation disc and run chkdsk /f /r.
• Improperly configured BOOT.INI (Windows XP). If you have inadvertently erased or tinkered with the boot.ini file, you may receive stop code 0×7B during the startup process. Launch the recovery console from the Windows installation disc and run BOOTCFG /REBUILD

1. Right-click the desktop and select Personalize from the drop-down menu that appears.
2. Select Window Color and Appearance .
3. Select the Windows Aero theme, and then click Apply.

If you wish to Disable Windows Aero , follow the steps below:

1. Right-click the desktop and select Personalize from the drop-down menu that appears.
2. Select Window Color and Appearance .
3. Click on Open classic appearance properties for more options.
4. Select the theme that you prefer, and then click Apply

To disable 802.11n mode:

1. Click start.
2. Right click “Network” and select properties.
3. Select “Manage network connections”
4. Right click wireless network icon and select properties (press “continue” if User Account Control window appears).
5. Select “Configure”
6. Select “Advanced” tab
7. In the left window select 802.11n Mode.
8. Under Value: select the drop down arrow and select “Disabled” (for Windows XP uncheck “Use default value” before selecting the down arow).
9. Click “OK” to exit.
10. Reboot.

This error message means that the computer cannot find a certain partition on the hard drive. Hard drives often have multiple sections or partitions. Dell computers have three or more partitions including: A hidden Dell utility partition, the main operating system partition, and a hidden Dell restore partition.

This problem can be resolved in one of three ways listed below and will walk you through reconfiguring your BIOS ad could potentially lead to restoring your hard drive to its original factory condition. It is helpful if you print this article out so that you can refer to these instructions as you restart your computer. If these adjustments are not effective or you do not feel comfortable doing this on your own, please call our contact center with your service tag, journal ID and article ID (located in the top right hand corner of this article) handy to speed further assistance.

First possible resolution: Changing the USB Controller Setting to No Boot in the Computer BIOS
To configure the computer so that it cannot start from a USB device, follow these steps:

1. Restart the computer. Turn computer off and turn it back on again.
2. During the startup process, press to open the “System Setup” (BIOS) screen.
3. Press the down arrow key until “Onboard Devices”, and then press .
4. When the “Onboard Devices” menu appears, press the down arrow key until the “USB Controller” is selected.
5. When the USB Controller menu appears, press the right arrow key to highlight “No Boot”, and then press . The No Boot option is selected (Figure 1).



6. Press .
7. Press the right arrow key repeatedly to highlight Save/Exit, and then press . The settings are saved to the BIOS, and the computer restarts.

Second possible resolution: Disconnect All USB Devices, and Start the Computer

1. Turn off the computer.
2. Unplug all external USB devices except for the keyboard and the mouse.
3. Start the computer.
4. When the operating system desktop appears, reconnect the USB devices.

IF THE OPERATING SYSTEM DESKTOP DOES NOT APPEAR OR THE ERROR CONTINUES, the connected USB devices do not cause the problem and you may need to restore the original operating system.

Use the Windows Debugger to pinpoint the exact cause of these errors.

Things to check:

1. If the Blue Screen error mentions a driver or library file, figure out what driver or program the file is a part of and either upgrade to the latest version or uninstall the driver or program.
2. If the error happens during the startup process, try booting to the Last Known Good Configuration.
3. If the error started appearing after a program or driver was installed, uninstall that program or driver.
4. Try running a full hard drive and memory diagnostic after reseating the memory and hard drive data cables.

Things to check:

• Reseat the memory and all drive data cables to eliminate data corruption issues stemming from poorly or improperly seated hardware.
• Run a complete memory and hard drive diagnostic. The quick test will not be thorough enough here. You need to run the full system diagnostic.
• If those diagnostics pass, run a full file system check from the Recovery Console (chkdsk /f /r) to detect and (potentially) fix any corrupted data.
• If none of the above solves the issue, reinstall Windows.
• If that does not fix the issue, replace the hard drive.

1. Go to the Control Panel by clicking the Start button then Control Panel.


2. Click Appearance and Themes then click the Display icon. Then click the Settings tab and then the Advanced button.


3. Now click the Monitor tab then the Properties button. Click the Diver tab then the Update Driver button. This will open the Hardware Update Wizard.


4. Select “No, not at this time” where it asks you if Windows can connect to the Internet to search for software. Then, click Next and select “Install from a list or specific location (Advanced)” where it asks what you want the wizard to do. Then click Next.


5. Select “Don’t search. I will choose the driver to install” and click Next again and click the “Have Disk…” button, this will open the “Install from disk” window.


6. Click the Browse button then navigate to the folder you extracted the monitor driver to (I.E. c:\al1912drv). Select the driver file (I.E. AL1912.INF) and click Open. Then click the “OK” button. This will bring you back to the hardware wizard. Click Next again.


7. If you get a message that the driver is not has not passed Windows Logo testing click the “Continue anyway” button.


8. The driver will install now. When it’s done click the “Finish” button.

To install monitor drivers in Microsoft Windows Vista:

1. Go to the Control Panel by clicking the Start button then Control Panel.


2. Click Appearance and Personalization, Personalization, then Display Settings. Now click the Advanced Settings button.


3. Now click the Monitor tab then the Properties button. Click the Diver tab then the Update Driver button. This will open the Update Driver Software window.


4. Click the Browse my computer for driver software button then click the “Let me pick from a list of device drivers on my computer” button.


5. Click the “Have Disk…” button, this will open the “Install from disk” window.


6. Click the Browse button then navigate to the folder you extracted the monitor driver to (I.E. c:\al1912drv). Select the driver file (I.E. AL1912.INF) and click Open. Then click the “OK” button. This will bring you back to the hardware wizard. Click Next again.


7. If you get a message that the driver is not has not passed Windows Logo testing click the “Continue anyway” button.


8. The driver will install now. When it’s done click the “Finish” button.

Answer
Unfortunately, this is chipset limitation. This phenomenon occurs when all of the following conditions are met:
1. SATA ODD
2. Vista 64 bit OS
3. 4G memory

To work around this issue, please avoid the above combination during 64-bit Windows Vista installation.