How to fixDRIVER-IRQL-MISMATCH

Driver IRQL mismatch (IRQL_NOT_LESS_OR_EQUAL variant) ranks as a critical-severity system driver issue in our database. A driver attempted to access memory at an incorrect IRQL level. Unlike standard IRQL_NOT_LESS_OR_EQUAL, this variant specifically indicates the driver is operating at a higher IRQL than allowed for the memory access type. Common in drivers that use spinlocks incorrectly or perform I/O at elevated interrupt levels, bypassing Windows kernel safety checks. The steps below are ordered to resolve this efficiently.