Using Task Manager.docx

Kernel panic 404 440 now lets discuss kernel panic

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Kernel Panic 4:04-4:40 Now let's discuss kernel panic. When the operating system detects an internal error from which it cannot safely recover, it issues a kernel panic and halts all processing in order to prevent data corruption. On Linux systems you will see this referred to specifically as a kernel panic. On Windows systems a blue error screen is displayed when a kernel panic occurs. Sometimes you hear this referred to as a blue screen of death. In Windows 7 and earlier these blue screens provided useful information that could be used to diagnose the issue. However only minimal information is displayed in Windows 8 and later. Causes of Blue Screen Errors 4:41-5:12 A blue screen error could be caused by a number of problems. For example, a blue screen could occur if one process running on the system tries to use memory that's already been allocated to a different process. It could also be caused by faulty hardware such as a malfunctioning memory module.
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To troubleshoot a blue screen error, write down the error message that is displayed. Then use this information to perform an online search. Frequently you will find troubleshooting articles that describe what is causing the error and possibly how to fix it. Improper Shutdown 5:13-6:26 Now let's discuss issues associated with improper shut down of the operating system. Most modern operating systems, including Windows, need to be shut down properly to ensure that all impending disk I/O operations are completed properly. Improperly halting the system by holding down the power button or unplugging the power supply can result in corrupt data as pending disk writes are not completed. This can corrupt data files, operating system files and even restore points. The best strategy is to prevent improper shutdowns from occurring in the first place. There are several things you can do to prevent improper shutdowns. You can train users to shut down their systems properly. You can implement an uninterruptible power supply to protect the system in the event of a power outage. You can monitor the state of the power supply in the workstation. A failing power supply can cause the system to spontaneously shut down or reboot. You can test software thoroughly before deploying it in a production environment. This is especially true of applications written in house, poorly written software can cause the system to spontaneously shut down or reboot. If an improper shutdown occurs it's a good idea to scan the disk for errors once the system is running again. Missing DLLs 6:27-6:56 Another type of Windows error that you may encounter is one where an error message is displayed indicating that the DLL is missing. A missing or corrupt DLL file can be caused by many things. For example the DLL may have been removed when an application was uninstalled. The DLL could have been overwritten with a different version when a new application was installed. The DLL could've been corrupted by an improper shutdown or by a failing storage device or an end-user could have deleted the DLL file.
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  • Spring '14
  • Task Manager, Hard disk drive

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