Bluescreen whne booting

When i boot war thunder i get a blue screen saying irql_not_less_or_equal ive tried everything and installed the latest drivers is it because i dont have Windows activated? This only happens when i boot warthunder and not in any other game

Might be a corrupted file on your system. Launch control panel as a admin on your system and type in “sfc /scannow” and see if it fixes it.