Note: Linux will report and complain about ICRC errors, or (apparently in later kernels) simply retry the read until it succeeds without error. Windows, on the other hand, logs this nondescript message: The driver detected a controller error on \Device\Harddisk2\DR16. and then keeps copying. With no indication that: - Windows is silently accepting bad data from the drive and corrupting the copied file - What the hell disk DR16 refers to - What kind of controller it even is (USB? internal SATA?) So, if you see these errors in your event log, Windows has probably silently corrupted a few files. Checksum everything important.