![]() ![]() ![]() How To Enable Boot Logging For Fixing Startup Problems in Windows. When facing a system crash or startup up problems on Windows Computers, troubleshooting the problem can be difficult to resolve. The first step with recovery is to use Windows Safe Mode option during startup. One Safe Mode option that will help troubleshoot boot problems is to enable Boot Logging which will create a log and help identify the device or driver that is causing the problem during startup. When Boot Logging is enable, Windows boots normally, until the device or driver that is causing the problem either crashes the system or completes starting up but causes an error message in the Event Log. While booting, Windows creates a log file that lists every step processed that is attempted and completed.
You can then reboot in to Safe Mode and review the log file named ntbootlog. The log is stored in the %SYSTEMROOT% directory (normally C: \Windows or C: \WINNT folder). Below is an example of ntbootlog. Windows XP (Vista log is similar): Service Pack 2 5 4 2. Loaded driver \WINDOWS\system. Loaded driver \WINDOWS\system. Loaded driver \WINDOWS\system. KDCOM. DLLLoaded driver \WINDOWS\system. BOOTVID. dll. Loaded driver ACPI. Loaded driver \WINDOWS\System. DRIVERS\WMILIB. SYSLoaded driver pci. Loaded driver isapnp. ![]() Loaded driver compbatt. Loaded driver \WINDOWS\System. DRIVERS\BATTC. SYSLoaded driver intelide. Loaded driver \WINDOWS\System. DRIVERS\PCIIDEX. SYSLoaded driver Mount. Mgr. sys. Loaded driver ftdisk. ![]() Loaded driver dmload. Loaded driver dmio. Loaded driver Part. Mgr. sys. Loaded driver Vol. Snap. sys. Loaded driver atapi. Loaded driver vmscsi. Loaded driver \WINDOWS\System. DRIVERS\SCSIPORT. SYSLoaded driver disk. Loaded driver \WINDOWS\System. DRIVERS\CLASSPNP. SYSLoaded driver fltmgr. Loaded driver sr. How to run sfc /scannow command? System File Checker or sfc.exe scans for, restores corrupt Windows system files protected by Windows File Protection (WFP). To enable Boot Logging on Windows XP and Vista, boot your Computer, and during startup continually press F8 until the menu screen appears: NOTE: screen shot is from XP. Vista menu will look slightly different than XP. Press F8 to display the Advanced Menu screen and select Enable Boot Logging. You will be returned to the menu screen and you should see Enable Boot Logging in blue displayed at the bottom of the screen (don't worry if this screen is not displayed and Windows starts to boot): If the problem does not cause Windows to crash, and after startup has completed, you can review the ntbootlog. Look for any signs of problems loading device drivers. If you find problems, go into Device Manager and disable the device or uninstall the program, then reboot again. If the problem does not occur then you know it was that device and you should check the vendor website for new drivers or known issues. If your problem does cause Windows to crash, reboot into Safe mode by selecting Safe Mode from the Advanced Menu screen. The Windows Registry keys that are likely to br involved in startup are listed. MSCONFIG: speeding up Windows 7 startup. The System Configuration tool MSCONFIG has different options and settings to make changes to the Windows 7 startup procedure. Software Download freeware and shareware software utilities and apps. Download files for your computer that tweak, repair, enhance, protect. Toshiba Satellite pro won't boot past windows xp logo startup screen - Tech Support; Acer aspire e1-522 is black after windows logo startup - Tech Support. Tenorshare Windows Boot Genius is a boot disk that can boot your computer from CD/DVD/USB can't get into Windows, and repair Windows system, rescue data, repartition. When reviewing ntbootlog. More than likely the problem will be toward the end of the file (since that was the last item logged before crashing). When you identify the problem, either uninstall the application or go in to Device Manager and disable the device. Reboot your Computer and see if the problem still exist. If it boots without crashing, check the vendor website for new drivers or known issues. If you are still having problems, enable Boot Logging again to see if new events are logged after you have disabled the device or uninstalled the program. If you are unable to fix the problem, you may need to have a Computer shop troubleshoot the problem for you. Notes on Boot Logging: Boot Logging can only be enabled from Safe Mode. Once it is enabled, it only logs during the current boot. It will not log during the next reboot unless you enable it again from Safe Mode. If an existing ntbootlog. Boot Logging is enabled, Windows will append to the existing log file. It is a good idea to have Windows create a new log when there are no problems or after you have added new devices. This will allow full logging to occur and will let you compare with a log when problems exists.
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November 2017
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