How to Test a Failing Hard Drive
A drive that’s on its way out usually warns you first, random freezes, slow performance, files that won’t open, or faint clicking. Catching it early lets you get your data off before the drive fails for good. You can check a drive’s health from a USB stick without installing anything, and without trusting a drive that might be dying.
Step by step
- Boot the FATALnet stick and open Drive Health to read the drive’s own built-in SMART report, temperature, hours of use, wear level, and any early-warning flags.
- Run a Surface Scan to check the whole drive for unreadable or failing spots.
- Run a quick speed test to confirm it’s still performing normally and not crawling.
- If anything looks bad, recover your important files first (see the file-recovery guide), then plan to replace the drive.
What to expect
If SMART shows reallocated or pending sectors, or the surface scan finds bad spots, treat the drive as failing, back up now and replace it. If everything reads clean but the PC is still slow or unstable, the cause may be elsewhere (memory, the operating system, or overheating), which the full diagnostic walkthrough can help narrow down.
Do it all from one USB stick
The FATALnet Tech Toolkit runs every one of these tools from a clean on-screen menu, no setup, no command line, on any PC.