Here is a summary of the boot sequence, what will be seen on the display, and typical boot problems at that point in the sequence. Before starting troubleshooting, you have to understand the outline of the boot process and display status to ensure that the issue is properly identified at the beginning of the engagement. Click to enlarge. Each phase has a different approach to troubleshooting. This article provides troubleshooting techniques for problems that occur during the first three phases.
If the computer repeatedly boots to the recovery options, run the following command at a command prompt to break the cycle:. Check whether the hard disk drive light on the physical computer is working. If it is not working, this indicates that the startup process is stuck at the BIOS phase.
Press the NumLock key to see whether the indicator light toggles on and off. If it does not, this indicates that the startup process is stuck at BIOS. If the screen is completely black except for a blinking cursor, or if you receive one of the following error codes, this indicates that the boot process is stuck in the Boot Loader phase:. The Startup Repair tool automatically fixes many common problems. The tool also lets you quickly diagnose and repair more complex startup problems.
When the computer detects a startup problem, the computer starts the Startup Repair tool. When the tool starts, it performs diagnostics. These diagnostics include analyzing startup log files to determine the cause of the problem.
When the Startup Repair tool determines the cause, the tool tries to fix the problem automatically. Start the system to the installation media for the installed version of Windows. For more information, see Create installation media for Windows. The Startup Repair tool generates a log file to help you understand the startup problems and the repairs that were made.
You can find the log file in the following location:. For more information, see A Stop error occurs, or the computer stops responding when you try to start Windows Vista or Windows 7.
If the corruption in the MBR affects the partition table, running Fixmbr may not fix the problem. If methods 1, 2 and 3 do not fix the problem, replace the Bootmgr file from drive C to the System Reserved partition. To do this, follow these steps:.
If Windows cannot load the system registry hive into memory, you must restore the system hive. If the problem persists, you may want to restore the system state backup to an alternative location, and then retrieve the registry hives to be replaced. Starting in Windows 10, version , Windows no longer automatically backs up the system registry to the RegBack folder. This change is by design, and is intended to help reduce the overall disk footprint size of Windows.
You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question 1. Report abuse. Details required :. Cancel Submit. I also get a bsod saying irql not less or equal and sometimes it changes to driver irql not less or equal. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. Hi, Could you please supply us with a little more information about the bluescreen errors?
Particularly, if there are any error codes or BCCodes you can see. If you are seeing a quick flash of a blue screen of death BSOD after adding your , then I would do this: What is your system make and model? If your system used to work properly, what do you think might have happened to it since the last time it did work properly? If there is a problem booting, XP is configured to automatically try to boot again and you can get stuck in a loop of just being unable to get past the boot options screen or none of the boot options you choose will work.
Sometimes when XP has a problem starting or crashes and tries to start again, it will give you a "short" menu of boot options and none of them will seem to be the right ones to get your system going again. You've tried them all! Here's a look at the likely culprits and what you can do to fix the problem.
When your computer hardware appears to power up okay, but the Windows XP operating system won't boot properly, you have to begin a troubleshooting expedition that includes getting into the operating system, determining the problem, and then fixing it.
To help you get started on this expedition, here are 10 things you can do when Windows XP won't boot. This entry was originally published as an article on January 26, One of the first things you should reach for when troubleshooting a Windows XP boot problem is a Windows startup disk.
This floppy disk can come in handy if the problem is being caused when either the startup record for the active partition or the files that the operating system uses to start Windows have become corrupted.
To create a Windows startup disk, insert a floppy disk into the drive of a similarly configured, working Windows XP system, launch My Computer, right-click the floppy disk icon, and select the Format command from the context menu.
When you see the Format dialog box, leave all the default settings as they are and click the Start button. Once the format operation is complete, close the Format dialog box to return to My Computer, double-click the drive C icon to access the root directory, and copy the following three files to the floppy disk:.
After you create the Windows startup disk, insert it into the floppy drive on the afflicted system and press [Ctrl][Alt][Delete] to reboot the computer. When you boot from the Windows startup disk, the computer will bypass the active partition and boot files on the hard disk and attempt to start Windows XP normally.
You can also try to boot the operating system with the Last Known Good Configuration feature. This feature will allow you to undo any changes that caused problems in the CurrentControlSet registry key, which defines hardware and driver settings. The Last Known Good Configuration feature replaces the contents of the CurrentControlSet registry key with a backup copy that was last used to successfully start up the operating system.
When you see the message Please select the operating system to start or hear the single beep, press [F8] to display the Windows Advanced Options menu. Keep in mind that you get only one shot with the Last Known Good Configuration feature. In other words, if it fails to revive your Windows XP on the first attempt, the backup copy is also corrupt.
System Restore runs in the background as a service and continually monitors system-critical components for changes. When it detects an impending change, System Restore immediately makes backup copies, called restore points, of these critical components before the change occurs.
In addition, System Restore is configured by default to create restore points every 24 hours.
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