Mydisktest V242 Portable «2025»

: It searches for broken parts inside the drive memory. Speed Test : It measures how fast the drive copies files.

This is the program's claim to fame. Expansion—or "capacity counterfeiting"—is a scam where malicious firmware makes a 4GB drive report itself as 64GB. If you copy a 10GB file to a 64GB fake drive, the file will corrupt as soon as it passes the device's real 4GB limit. MyDiskTest writes data to the drive and reads it back to verify the actual available space. If the test fails, the tool will alert you to the real capacity. mydisktest v242 portable

It often feels more modern than the archaic H2testw and provides a visual graph of the speed during the test, allowing users to spot inconsistencies in write speeds that might indicate a failing controller. : It searches for broken parts inside the drive memory