1. First, make sure that you have this error code - Stop 0x0000000A or IRQL_NOT_LESS_OR_EQUAL
2. This Stop message is typically caused by incompatible or faulty hardware or software. IRQL stands for Interrupt Request Level. An IRQL 'defines the hardware priority at which a processor operates at any given time'.

3. When this Stop error message occurs, you can try to resolve the issue by using the Windows Error Reporting tool. This tool is automatically displayed when the error occurs. The Reporting tool sends an error report to Microsoft, and sends a fix or a workaround back to you immediately. Try this fix first and see if it supplies a fix. If not, continue on.
4. This error might occur after installing a faulty device driver, system service, or firmware. So ask yourself, Have I installed any new devices lately? The Stop message may list a driver by name, disable, remove, or roll back the driver to correct the problem. Try to disable or remove the drivers and see if this resolves the issues. If it does, contact the manufacturer about a possible update. Sometimes manufacturers know about issues and make fixes.
5. This message can also be caused by failing or defective hardware. If the Stop message points to a category of devices, try removing or replacing the hardware to see if it is the root of the problem.
6. You may get a Stop 0xA message while upgrading to Windows XPl, the problem could be caused by an system service, incompatible driver, virus scanner, or backup. After you have successfully installed Windows XP, you can contact the manufacturer of the hardware to obtain compatible updates.
7. Stop: 0x0000000A (parameter1, parameter2, parameter3, parameter4)
IRQL_NOT_LESS_OR_EQUALIn this Stop error message, each parameter is a hexadecimal number that refers to a specific issue:
• Parameter 1 - An address that was referenced incorrectly.
• Parameter 2 - An IRQL that was required to access the memory.
• Parameter 3 - The type of access, where 0 is a read operation and 1 is a write operation.
• Parameter 4 - The address of the instruction that referenced memory in parameter 1.