Does it have a modern interface? No. Does it need a manual? Barely. Does it work when H2testw fails and CrystalDiskMark lies about capacity? Absolutely.
Crucial warning: Mydisktest V2.42 shows physical drive letters , not partitions. Ensure you select the correct drive letter (e.g., E:). Mistaking your C: drive would lead to catastrophe. Mydisktest V2.42
The program freezes at 99%. Solution: This often happens with dying hard drives that go into read-retry loops. Let it run for up to 2 hours, but if no progress, the drive is failing physically. Abort and recover data immediately. Does it have a modern interface