While smartdqr.sys itself is not a classic widespread virus (like svchost.exe imposters), security researchers have flagged the name in the context of:
Sometimes driver files like this can cause high CPU or disk usage if they get stuck in a loop during a background wipe operation. Check Task Manager
The most common legitimate source of smartdqr.sys is , specifically a tool related to ASRock Restart to UEFI (RTU) or ASRock XFast RAM . Some user reports and driver databases also associate it with a feature called “Smart DQR” (Digital Quiet Response), though official documentation from ASRock is sparse.
S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology)
: Instead of traditional round-robin pathing, use smartdqr.sys to monitor real-time I/O latency at the HBA level. The feature would automatically route high-priority traffic to the least congested path in the SAN fabric.
