Troubleshooting Startup Problems Tech. Genix. Troubleshooting is merely the methodical application of common sense and technical knowledge to the inevitable problems that crop up in a fallen world. If common sense can be codified and perhaps it can with AI then it starts with answers to simple questions like Why How What In this article Ill try to distill the issues, tools and procedures of troubleshooting Windows XP2. PDA for easy access when the proverbial poop hits the fan. Lets begin with the Why question. Why do startup problems happenWindows may fail to start for a variety of reasons, and generally speaking in order of decreasing likelihood here they are Hardware failure. Corrupt file or volume. System misconfiguration. Virus infection. Let me elaborate. Sample report Custom viewsfilters Servers list, organized in groups Integration with EventID. Net Consolidated view for all logs Free for subscribers. A common reason systems fail to start is because some element of the systems hardware has failed. This could range from the simple someone kicked the power cord out of its socket to the obvious smoke emitting from the machine to the mysterious something transient that happens only when the moon is full or during sunspot minimum. Next most common is when you update the driver for some piece of hardware or the BIOS for that matter and the system wont boot afterwards. After that comes those mysterious messages well talk about shortly that usually indicate some key operating system file has somehow become corrupt or gone missing. Misconfiguration is another possible source of boot problems, but this is somewhat rare as in most cases youll still be able to boot but one or more services may fail to start or your applications may not function as expected. Finally, virus infection can cause a system to fail to boot, but Ive listed this in last place because Im assuming youve got an antivirus solution in place and youre keeping the antivirus signature files updated, rightNow that we know why Windows may fail to start properly, lets ask the logical next question How can we know which of these underlying causes is the one that might be preventing Windows from successfully booting How to diagnose startup problems. This article examines a number of common problems associated with booting Windows XP and Windows Server 2003 systems and offers tips on how to resolve them. A week before exGoogle engineer Anthony Levandowski allegedly stole selfdriving car trade secrets from the tech giant, the ridehailing company Uber had drafted a. Here is where we need to apply our brains and use a bit of common sense to determine what the cause of startup failure might be. Think of the previous list above as a list of disease causing viruses, and now you have to play doctor and figure out which virus the patient your sick computer actually might have. For if you skip this step and try blasting the patient with every possible remedy in your doctors bag, two things may happen One of the remedies you try may actually make the patient worse and indeed could prove fatal. Youll waste a lot of time and the recovery of your patient will be delayed, and your boss may get upset with you as a result since her business is losing money due to downtime. So careful diagnosis is a step you should always take time for and never avoid, and just like in the medical profession such diagnosis usually begins with your senses. For example, do you smell something burning Better unplug your system immediately and wait for things to cool off, then open the case and inspect the damage. Do you hear your CPU fan making a slow grinding sound Power down your system and replace the fan before your processor burns out and needs replacing. Is your video display flickering Maybe try reseating the video card after checking if the video cable is seated properly. OK lets assume its not such a simple and obvious problem. Instead, say you get a black screen with one of the following dreaded messages when you try and boot your system NTLDR is missing. A disk read error occurred. Invalid partition table. Error loading operating system. Could not read from selected boot disk. Microsoft Lifecam Studio 1080P Recording Software. Windows could not start because the following file is missing or corruptOr you might get a blue screen called a STOP screen with some obscure message on it. Or if youre lucky you might make it all the way through the Windows splash screen to the logon box and then suddenly get a dialog box saying One or more services failed to start. Or your mouse pointer might freeze and your system hang either before or immediately after logon. How can you match these symptoms to the underlying condition that might be causing them First lets look at some possible black screen messages that can occur after the BIOS POST routine finishes but before the Windows splash screen appears Symptom. Probable CauseInvalid Partition Table. Missing Operating System. Invalid Partition TableMaster boot record is corrupt due to hard disk errors or virus infectionNTLDR is missing. A disk read error occurred. System hangs after BIOS POST finishes. Boot sector is corrupt due to hard disk errors or virus infectionWindows could not start because of a computer disk hardware configuration problem. Could not read from selected boot disk. Check boot path and disk hardwareBoot. Windows could not start because the following file is missing or corruptBoot volume is corrupt or the referenced system file is missing. In addition to these error messages, a variety of other startup problems can occur including Blue screens. These are typically caused by hardware failure or driver problems but can also be due to virus infection. Hung system. These are typically caused by buggy drivers or by registry corruption but can also be due to virus infection. Dialog box saying One or more services failed to start. This is typically caused by misconfiguration or registry corruption but can also be caused by application incompatibility of some form. So what should you do to resolve such problemsHow to resolve startup problems. Like a doctors mysterious black medical bag full of medical instruments at least in old movies on TV the system administrator also has a set of tools provided by Microsoft for resolving startup problems like the ones in the table above. In a nutshell, heres a quick inventory of the main tools Last known good. Restores the HKLMSystemCurrent. Control. Set portion of the registry its version during the last successful logon to the system. Safe mode. Starts Windows with a minimal set of drivers and creates a record of which drivers load in windirNtbtlog. System Restore. Windows XP only feature to restore system to previously saved configuration. Recovery Console. Boots to a command line that allows you to run various commands, see this article by Johannes Helmig for more info. Automated System Recovery ASR. Restores the boot volume from backup, see this article by Johannes Helmig for more info. Repair. Run Windows Setup from your product CD and select the option to try and repair your installation. Which tool should you use to address each of the symptoms we described earlier Assuming there is no obvious hardware problem no funny smell and youve already asked yourself the Golden Question What was the last thing I did to this system then heres a quick outline that maps the type of knife may be several in order of severity to the kind of surgery underlying problem or visible symptom you need to perform on your system ProblemSymptom. Tools to Use. Corrupt master boot record. Recovery Console fixmbrCorrupt boot sector. Recovery Console fixbootCorrupt or missing boot. Recovery Console bootcfg rebuildCorrupt system file. Recovery Console chkdskRestore from ASR backup. Perform a Repair install. Corrupt registry. Recovery Console chkdskSystem Restore XP onlyRestore system state from backup. Perform a Repair install.
At Least One Service Or Driver Failed During Startup Server 2003© 2017