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Note: System BIOS may get corrupted if the BIOS upgrade or downgrade procedure is not completed successfully or interrupted.Ī corrupt BIOS is one of the possible causes of your PC unable to complete POST or some times even boot into the operating system.

Press ESC to exit the BIOS, and be sure to select Save and Exit to save your changes.

Depending on the BIOS, you may need to press a key that is listed at the bottom of the screen to load default settings.

At the Dell logo during restart, tap the F2 key repeatedly until you see Entering Setup in the top-right corner of the screen.

To reset your computer's BIOS to factory defaults, perform the following steps: If your computer is set to first attempt to boot to another device, this may cause issues with successfully booting to Windows. Search Dell Search Microsoft Search Google Search Bing

If the error message is not listed above, try searching for additional solutions on the Web.Ĭlick your preferred search engine below, then describe your problem in the search box provided.

A BLUE SCREEN or STOP error has occurred.

Loading PBR for Descriptor generated after POST.

Refer to the following links for more information:

Then plug wall power back into the computer and attempt to restart.ĭell has information about some specific error messages at startup. Once this is completed, unplug the computer from the wall, remove the laptop battery (if applicable) and hold the power button down for approximately 15 seconds. The only devices that you should leave attached to your computer are your monitor, mouse, and keyboard, if the computer is a desktop. Small Media cradles (iPod, PDA, MP3 player, etc.).Try unplugging all devices from your computer, including: If you power the computer on and see a Dell logo screen with a bar at the bottom, and that bar fills up completely and disappears, your computer has successfully completed POST.Ĭlick here if your computer does not complete POST.Ĭlick here if your hard drive is not recognized.Ī piece of hardware may be interfering with the normal boot process of Windows. Often a computer will not attempt to hand off control to the operating system. Verify the Computer Finishes Initial Power-Up (POST) Video (YouTube): How to Fix a Computer that Will not Boot Up (Official Dell Tech Support)ġ. This article provides information about "Computer Does Not Boot to Microsoft Windows 7"Ĭlick below to change the operating system. Restore the Operating System to Factory Settings.Use Clean-Boot Troubleshooting to Isolate the Software Issue.Use System Restore to Revert to a Previous State.Use Startup Repair to Restore Critical Windows Files.Boot to the last known good configuration.Boot to the HDD using the one-time boot menu.Verify the Computer Finishes Initial Power-Up (POST).