Ругается на A3AB.sys . Ошибка 0x0000000A: IRQL_NOT_LESS_OR_EQUAL
ОС = WinXP Prof SP2

Сообщение очень распространенное.
Google выдает примерно 125 000 ссылок.

Вот выдержка с одного из форумов:

DRIVER_IRQL_NOT_LESS_OR_EQUAL.

This problem can be caused by:

1. A damaged Virtual Memory Manager Page file.
2. A faulty RAM (memory) module.
3. A RAM module that is NOT compatible with the computers chip set.

To resolve this issue, check your computer documentation or contact the computer manufacturer

If the RAM is OK or changing it does NOT fix the problem:

01. Right-click My Computer and press Properties.

02. Select the Advanced tab.

03. Press the Settings button under Performance.

04. Select the Advanced tab.

05. Press the Change button under Virtual memory.

06. Select No paging file and press the Set button. Press Yes if prompted.

07. Press OK, OK, and OK.

08. Shutdown and restart your computer.

09. Right-click My Computer and press Properties.

10. Select the Advanced tab.

11. Press the Settings button under Performance.

12. Select the Advanced tab.

13. Press the Change button under Virtual memory.

14. Select System Managed size and press the Set button. Press Yes if prompted.

15. Press OK, OK, and OK.

16. Shutdown and restart your computer.