file_protector.sys consumes nonpaged memory pool until the computer eventually becomes unresponsive.
Update Acronis Agent to the latest build available. The newest product builds always contain latest improvement and fixes.
If the issue reproduces with the latest build, collect:
- Acronis system report
- Process monitor log
- dump file of active_protection_service.exe
procdump -ma -s 5 -n 3 active_protection_service.exe
and contact Acronis support.