If your PC suddenly started crashing with a blue screen that says DRIVER_IRQL_NOT_LESS_OR_EQUAL and points to igdkmdn64.sys, you’re not alone. This error comes from a bad Intel graphics driver — when Windows installs a buggy Intel graphics driver — usually version 32.x.x.xxxx. The good news is: it’s completely fixable.
Step 1 – Check your driver version
Right‑click Start → Device Manager → Display adapters → Intel Graphics → Driver tab. If you see a 32.x driver, that’s the problem.
Step 2 – Roll back the driver
If rollback is available and the previous driver is still present, rolling back usually fixes the crash.
Step 3 – If rollback is NOT available and the previous driver is still, Download the stable Intel driver: 31.0.101.5534 and install it manually. — this version works perfectly for 11th and 12th gen Intel laptops. Install it, restart.
Step 4 – Stop Windows from reinstalling the bad driver
To prevent Windows from reinstalling the bad driver, install the Intel Driver & Support Assistant. set Automatic Updates to Notify Only.