Are you getting STOP error while accessing files from Windows XP operating system-based hard drive after upgrading to Windows XP? Are you unable to access files from hard drive? Well, this behavior may occur due system or operating system related problems. It prevents you from booting your system properly and access files from Windows hard drive. The problem leads to severe file loss situations, if you are unable to fix it and do not have valid backup of files. At this stage, file recovery is required to extract inaccessible, lost, or missing Windows files.

When you try to boot your Windows XP computer or while installing Windows XP, you may come across the below Stop error:

“Stop: 0x0000000A (parameter1, parameter2, parameter3, parameter4) IRQL_NOT_LESS_OR_EQUAL

• ** Address x has base at x – filename”

In the above error, every parameter is a hexadecimal value, which denotes a particular problem: Parameter 1 - Incorrectly referenced memory address. Parameter 2 – The internal request level (IRQL) is required for accessing the memory. Parameter 3 – Type of memory access, where 1 is write and 0 is read operation. Parameter 4 - Address of an instruction, which referenced address in the parameter 1. For Instance, the message may look like the following one: STOP 0x0000000A (0xBFD14AAC, 0x000000FF, 0x00000000, 0x8000F67C) IRQL_NOT_LESS_OR_EQUAL

• **Address 8000f67c has base at 80001000 - hal.dll

After the above errors, you can not boot your system and access files. To retrieve inaccessible files in such cases, you must find out the root of this behavior and then carry out Windows file recovery by sorting it out.

Cause This problem may occur due to incompatible device driver, incompatible software, missing or corrupt system files, corrupt operating system, and missing hard drive data structures.

Resolution You can try out any of the below methods to work around the behavior: Rollback driver failure. Reinstall device drivers. Restore Windows operating system. Use Windows Recovery Console and repair corrupt data structures. Format the hard drive and reinstall Windows XP operating system.

You should format the hard drive as a last resort only. It removes all the files from hard drive and cause severe problems. In such cases, file recovery software are required to recover lost, deleted, missing, and inaccessible Windows files. Such file recovery tools offer easy recovery through interactive user interface.