Fix Unarc.dll Error Code 11 [portable] Online

Follow these solutions in order. Start with #1, as it solves 80% of cases.

: Open Msconfig , go to Boot > Advanced Options . Check Number of processors and set it to a lower value (like 6 or 8) if you have a high-core count CPU (16+). 4. System File and Path Fixes fix unarc.dll error code 11