On several occasions the driver PCIIDEX.SYS was referenced - but not any more.
I have run a memory diagnostics
I have removed and reseated the memory chips
I have run a HD diagnostics
I have run 3 spyware checks
I have run 3 full AV scans
I have run all windows and hardware updates I thought relevant
I have nothing noted as problematic under device manager
No significant new installations.
What is bizarre, and for which I have no explanation, is that although the system restore feature was on, there are no restore points available - I disabled, re-enabled, and now it seems to be working.
The exact error code is:
Driver_irql_not_less_or_equal Stop: 0x000000D1 (0x0000SA44, 0x00000005, 0x0000SA44)
But the part in parentheses seems to change.
Can anyone help?