Error Codes And Start-up Messages From The Boot Sequence
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How To Fix Bios Error Windows 7
Lab Simulators A+ A+ Lab Simulator Network+ Network+ Lab Simulator Books Bootcamp Buy A+™ phishing mails Certification : Operating Systems Download CompTIA® practice tests A+™ Essentials 220-901 and A+™ Practical Application 220-902 3. Diagnosing, and Troubleshooting 3.1
Disk Boot Failure Windows 7
Recognize and interpret the meaning of common error codes and startup messages from the boot sequence, and identify steps to correct the problems. Common Error Messages and Codes Boot failure and errors Invalid boot disk Inaccessible boot device Missing the system found unauthorized changes on the firmware NTLDR Bad or missing Command interpreter Startup messages Error in CONFIG.SYS line XX Himem.sys not loaded Missing or corrupt Himem.sys Device/Service has failed to start A device referenced in SYSTEM.INI, WIN.INI, Registry is not found Event Viewer – Event log is full Failure to start GUI Windows Protection Error User-modified settings cause improper operation at startup Registry corruption Using the correct Utilities Dr. Watson Boot Disk Event Viewer Common Error Messages and Codes Boot failure and errors Invalid secure boot violation boot disk Inaccessible boot device Missing NTLDR Bad or missing Command interpreter Invalid boot disk This error appears if the MBR (Master Boot Record) of your hard drive is not okay. Ensure that that you do not have a floppy disk inserted in your floppy drive. Also make sure that the CMOS setup is pointing to the correct partition in your hard disk. Sometimes, it might happen due to corrupt boot sector. Run any antivirus software to detect and correct boot sector viruses. Inaccessible Boot Device The most likely reason is that the, Boot.ini has bad entries. If you are installing Windows NT4, make sure you do not use FAT32. This is because NT4 does not support FAT32. Missing NTLDR NTLDR means NT Loader, and the error is associated with Windows NT 4, Windows 2000 and XP. Solution: Ensure that the file NTLDR is on the root of your boot drive. You have the file in \i386 directory of Windows CD and you can just copy it. You can do this using Recovery Console. Bad or missing Command interpreter This error comes up if the command.com file is missing or corrupt. If not, boot with the startup disk (must be the same version or later as the system your trying to boot).and enter the command SYS C:\ at the A:> prompt to copy the system files to the hard drive (Windows 9x only). Startu
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Windows Boot Manager
4.0 >>> DOMAIN 3.0: Diagnosing and Troubleshooting This domain requires the windows failed to start ability to apply knowledge to diagnose and troubleshoot common problems relating to Windows 9x and Windows 2000. This
Boot Device Not Found
includes understanding normal operation and symptoms relating to common problems. Content Limits 3.1 Recognize and interpret the meaning of common error codes and startup messages from the boot sequence, http://www.simulationexams.com/tutorials/aplus/operating-systems/diagnosing-3.1.htm and identify steps to correct the problems. Content may include the following: Safe Mode No operating system found Error in CONFIG.SYS line XX Bad or missing COMMAND.COM HIMEM.SYS not loaded Missing or corrupt HIMEM.SYS SCSI Swap file NT boot issues Dr. Watson Failure to start GUI http://www.oocities.org/learnprogramming123/aplussyllabusos4.html Windows Protection Error Event Viewer Event log is full A device referenced in SYSTEM.INI, WIN.INI, Registry is not found 3.2 Recognize common problems and determine how to resolve them. Content may include the following: Eliciting problem symptoms from customers Having customer reproduce error as part of the diagnostic process Identifying recent changes to the computer environment from the user Troubleshooting Windows-specific printing problems Print spool is stalled Incorrect/incompatible driver for print Incorrect parameter Other Common problems General Protection Faults Illegal operation Invalid working directory System lock up Option (Sound card, modem, input device) or will not function Application will not start or load Cannot log on to network (option NIC not functioning) TSR (Terminate Stay Resident) programs and virus Applications dont install Network connection Viruses and virus types What they are Sources (floppy, emails, etc.) How to determine presence <<< Domain 2.0 Domain 4.0 >>>
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