FakeFlashTest 1.1.2 / 1.1.5 Beta

FakeFlashTest is a software specifically designed for Windows users to quickly identify fake flash memory devices that have been programmed to lie about their storage capacity. The most common problem with flash memory devices is that they have been ‘faked’. Fake flash drives or SD cards with massive storage capacities being sold for very cheap prices are usually fake, and this is where FakeFlashTest comes in.

One of the features of FakeFlashTest is the Fill Test. This test fills a flash drive with videos or large photographs to quickly see if the files are corrupt by simply viewing them afterwards. This test can take a while to complete, and it makes folders named \TESTDIR1, \TESTDIR2, etc., and puts 100 copies of the test picture in each folder. To perform this test, users are required to find a large .BMP, .JPG, or .PNG file (the larger, the better), copy it to the memory device, and rename it as TEST. They should also copy the file CopyTest.cmd to the root of the memory device, then double-click on CopyTest.cmd and press ENTER to start the test. The test stops when the drive has been completely filled with files, and users can press CTRL+C at any time to abort or press CTRL+S to pause the test and view the files in Explorer. Users can resume the copy process by running CopyTest.cmd again. They can then view the last \TESTDIRn folder (e.g., \TESTDIR53) using Windows Explorer – View – Medium Sized Icons and check that all the thumbnails in each folder are displayed correctly. Users can then delete the \TESTDIRn folders when they have finished checking the thumbnails.

FakeFlashTest warns users that if the memory device is fake, the Fill Test (which only copies files) can cause all their other files to be corrupted and lost. Fake flash drives or SD cards have been programmed to lie about their size, and although they appear to work fine and Windows will show them at their ‘rated’ capacity, they actually only contain about 2GB of real memory. These fake products are usually made from poor-quality or defective smaller flash memory chips, and the controller has been programmed to falsely report their capacity as 64GB to Windows. To avoid falling prey to these scams, users can ask sellers to test the UFD using RMPrepUSB – Quick Size Test, FakeFlashTest or H2TESTW before buying it. If the seller refuses to test it, then it's better to walk away from the deal.