There could be many grounds on behalf of which stop errors are caused:
• Corrupt hard disks
• Incompatible video drivers
• Poor quality audio drivers
• Faulty RAM and motherboards
• Frequent power cuts or failure etc
Apart from these causes, a stop or boot error can also occur as a symptom of other problem. For instance, if the error message reads driver error, the fault may not just lie with the driver that was reported. Boot errors are different for various operating systems. Say, when you start Windows XP or may have just upgraded to Windows XP, you may receive the following error message:
Error 1: STOP 0x000000ED (0xaaaaaaaa,0xbbbbbbbb,0xcccccccc,0xdddddddd)
UNMOUNTABLE_BOOT_VOLUME
This error is generated if your computer uses the Ultra Direct Memory Access (UDMA) hard disk controller while you use a standard 40-wire connector cable to connect the UDMA drive. Generally, 80-wire connector cable or 40-pin cable is desired. It could also occur when the basic input/output system (BIOS) settings are configured to force the faster UDMA modes or the file system is damaged and cannot be mounted.
Another situation can be when your computer stops responding unexpectedly, and you receive the following error message:
Error 2: A problem has been detected and Windows has been shut down to prevent damage to your computer...
Technical information:
*** STOP: 0x00000003 (0x03C91000, 0x00000134, 0x00000CF0, 0x00000000)
UNSYNCHRONIZED_ACCESS
The cause for such error can be multiple installation of tuner cards on one’s system.
In case, you use the fast switching feature in Windows XP, the computer may restart or you may end up receiving the following error message if you attempt to use the special buttons on the keyboard:
Error 3: IRQL_NOT_LESS_OR_EQUAL
Stop 0x0000000a (0x0227001d, 0x00000002, 0x00000000, 0x804eba3a)
If you have encountered this error while upgrading to Windows XP, then it may be caused by a system service, a virus scanner, a back up tool or a device driver that is incompatible with the new version. An inaccurate or damaged pointer that refers to an incorrect location in the memory is the most common cause of this error.
If you are using Windows Vista, boot errors are normally caused due to hardware or software problem. The typical symptoms are frequent shut downs or restarts followed with a blue screen that reads- Windows has been shut down to prevent damage to your computer!
You can receive the following error message if you have changed the SATA mode of the boot drive:
Error 1: STOP 0x0000007B INACCESSABLE_BOOT_DEVICE
If you have upgraded to Windows Vista, and have received this error, it means that Windows Vista does not include a compatible driver for the disk controller device. Some other reasons why this error occurs are:"
• Another program uses the master boot record
• Faulty hard disk
• Incorrectly connected hard disk cable
• Incompatibility of the computer BIOS or the disk controller firmware with Windows Vista
• Boot sector virus
Another type of error that you may come across while booting Windows Vista is
Error 2: "Stop: 0x000000A5" error
This error means that the Advanced Configuration and Power Interface (ACPI) standard supported in Windows Vista is incompatible with the computer BIOS. However, this error can also occur because the computer hardware, the peripherals, or the drivers for those devices are incompatible with Windows Vista.
There could be an endless list to errors like these. Some of them do demand technical expertise to rectify the problem. Ask PC Experts is a team of Microsoft certified technicians who are well versed in handling complex booting issues. Just dial the tech support team at 1-888-889-3335 and get instant troubleshooting at a very affordable price. You can also e-mail or chat with the experts regarding your system’s booting issues.
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