Symptom
This article describes a known issue with Acronis Active Protection when all four conditions, listed below, are met:
1) An external or built-in card reader for memory cards (SD, MMC, SM, XD, MS, MS-Pro and others) is connected and enabled
OR
any other kind of removable storage device without a mounted file system is connected, e.g. a removable storage device that appears after certain printer software is installed.