How to reduce CPU usage during WithSecure Client Security or Server Security scheduled scanning?

Issue:

WithSecure Client Security or Server Security scheduled scan causes high CPU usage. How can I reduce this?

Resolution:

Follow the steps below to change the priority of the scan from "Normal" to "Background" to improve the host performance during scheduled scanning:

1. Open the Policy Manager console
2. Select a host or policy domain from the domain tree
3. Go to the Settings tab
4. Navigate to Windows > Manual scanning
5. In the Scheduled scanning section you can change these settings to improve performance:
   • Run scanning with low priority (scan takes longer but takes less CPU resources)
   • Scan only known file types (scan in faster but does not scan all files)
   • Scan inside compressed archives (this requires significantly more CPU resources)
6. After changing settings, distribute the policy (Ctrl + D)