The second is Test Empty Space this one writes test files to the remaining free space on your drive - this test is not destructive, but if you do have a fake, then you could lose your data.įakeFlashTest is designed to perform a quick check to verify if a flash memory device is fake (i.e., they have been programmed to lie about their size) it does not check all memory faults.

The first is the Quick Size Test it will check your drive and report the actual capacity and warn if the drive is fake - this test is destructive and the author states that you WILL lose files. But that is not all it can help prevent corruption for example, a 32 GB SD card may only have 4 GB of memory, and once you fill that 4 GB space, it can potentially become corrupted, resulting in a loss of all the data stored.įakeFlashTest includes two tests, and due to the nature of these tests, we strongly recommend backing up all data stored in the test subjects. This is a pretty slick and simple tool for verifying that you have the memory size you paid for. Create a 1. Make contiguous all files on a drive (CTRL+F2) using WinContig. FakeFlashTest is for testing the actual memory size of USB Flash Drives and SD cards. Launch Disk Doctor, a disk test and sector/byte editing/viewing utility.

Fakeflashtest hanging