Вот чего умные люди пишуть:
0x000000D1: DRIVER_IRQL_NOT_LESS_OR_EQUAL

The system attempted to access pageable memory using a kernel process IRQL that was too high. The most typical cause is a bad device driver (one that uses improper addresses). It can also be caused by caused by faulty or mismatched RAM, or a damaged pagefile

РАМы у тебя небогато, а Ил до нее дюже охоч. Может, дефраг какой произвести, или своп на другой диск перебросить?