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Advanced Windows Startup Troubleshooting

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A corrupted/failed BIOS update on many Dell systems means the motherboard will likely need to be replaced.

If a Dell support representative offers to update the BIOS using the motherboard CMOS, Dell will replace the motherboard.

Terms =* The service itself can be either on-site service or return to Dell warehouse, depending on which warranty you purchased most often

If the BIOS is updated without the assistance of a Dell support representative and the concept damages the motherboard CMOS, Dell will almost certainly perform a one-time motherboard replacement.

Terms =* The service itself may sometimes providelocally or return to a Dell service center, depending on the service warranty you purchased. let us guide you

If a Dell Support representative asks you to update the BIOS and the of a specific motherboard is damaged, you are entitled to a one-time motherboard replacement after the warranty period.=*

Terms and Conditions This is a limited time offer* This is another service that only consists of parts. Dell will not call a technician on site* Dell motherboards may only be available for five years from the RTS (ready to ship) date of the original system. If the public is over 5 years old this month, you will have to buy the entire motherboard from a third party

If you updated the Direction BIOS without the assistance of a Dell support representative and the BIOS update corrupted the motherboard CMOS, you will need to purchase a replacement motherboard from Dell or a third party.

Homemade Gigabyte desktop with Designare Z390, i9 9900K

Windows 11 Pro 64-bit SSDs. Cakewalk by BandLab and SoftwareYour Studio One 4.6 Pro software for the recording studio.


There are several reasons why a Windows computer may experience difficulty booting. To troubleshoot boot issues, first determine which stages your computer is stuck at:

Stage Startup process BIOS UEFI

1 Prelaunch MBR/PBR (boot code) UEFI Firmware 2 Windows Boot Manager %SystemDrive%\bootmgr \EFI\Microsoft\Boot\bootmgfw.efi 3 Windows bootloader %SystemRoot%\system32\winload.exe %SystemRoot%\system32\winload.efi 4 Windows NT operating system kernel %SystemRoot%\system32\ntoskrnl.exe

The firmware PC initiates a power-on self-test (POST) and loads the firmware settings. This pre-boot process terminates when a valid system drive is found. The firmware even scans the Master Boot Record (MBR) and then launches the Windows Boot Manager.

Windows Boot Manager is locatedIt launches the Windows bootloader type (Winload.exe) in the Windows boot partition.

Important drivers needed to start Windows are loaded by the kernel, and the kernel itself starts working.

The kernel is weighted in the Windows registry hive of the storage system and additional drivers recognized as BOOT_START.

Kernel transfers control to the session manager process (Smss.exe), initializes session, system and more, and starts untagged devices and vehicle owners with BOOT_START.Is

Here is a summary of the download history, what is displayed on which screen, and typical download issues at this point in the process. Before you start troubleshooting, you should review the load step diagram and display state to make sure the problem is properly identified when you start troubleshooting.

Each level has a different approach to troubleshooting. This article provides troubleshooting tips for the first three steps.

BIOS Phase

To determine if a particular system has passed the BIOS Compliance phase, runTake the following actions:

  1. If only certain external devices are connected to the device, disconnect them.

  2. Make sure the hard drive indicator on the physical laptop is working. If he is in business, this does not mean that the investment process is stuck at the BIOS stage.

  3. Press the NumLock key to see if the indicator turns on or off. Otherwise it means that the boot solution is stuck in the BIOS.

    If a person’s body gets stuck during the BIOS procedure, there may be a problem with the screws and bolts.

Loader Phase

If the screen is dark enough except for the sport cursor, or if you get one of the following codes associated with it, it means that the loading process is stuck at the loader stage:< /p>

  • Boot configuration data (BCD) missing or corrupt
  • Run manually, registration or MBR corrupted
  • No operating system
  • The startup group is missing or corrupted.
  • Bootmgr also missing corrupted files
  • Unable to start because Hive is missing andis damaged.
  • To resolve this error, shut down your computer using the Windows installation media, press Shift+F10 to open a very specific command prompt, and then use one of the following methods.

    Method 1: Restore The Boot Tool

    The Boot Repair Tool solves many common problems on its own. With the new tool, you can also quickly diagnose and fix more complex startup issues. When the computer encounters a severe startup problem, the computer launches the Startup Repair tool. In particular, when you run the tool, it runs diagnostics. This diagnostic includes running an analysis of the log files to determine the general cause of the problem. If one of our recovery startup tools shows this, the tool will try to fix my problem automatically.