HDDScan is a portable hard drive testing program for Windows that can perform various tests on all kinds of internal and external hard drives. The program is easy to use and all optional features are easily accessible.
HDD Scan is another excellent free hard drive SSD HDD testing tool
HDDScan is completely portable. This means that you need to extract the files to make the program work, instead of installing it on your computer.
After downloading the ZIP file, extract it using Windows' built-in extractor or another free file extractor such as 7-Zip or PeaZip. Multiple files are extracted along with the main HDDScan program (such as XSLTs, images, a PDF, INI files, and a text file), but to actually open the HDDScan program, you use the HDDScan.zip file.
To test a hard drive with HDDScan, choose a drive from the dropdown menu at the top of the program, then choose TESTS. From here you can access all the tests and features offered; edit how the test should be run, then press the right arrow button. Each new test is added to the queue section at the bottom, and is started when each previous test has completed. You can pause or delete tests from this section of the program.
