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USB flash drives not detected by OS when plugged in a DeviceLock controlled computer


After plugging in a USB flash drive, it does not appear in 'My Computer' window, or has no assigned system letter.


The issue may indicate the lack of DeviceLock access permissions for 'SYSTEM' account for USB Port and/or Removable.


Make sure that 'SYSTEM' account is added into USB Port and/or Removable access control list with 'Full control' privileges.