Test USB Flash Drive And Hard Drive Integrity And Size

The device integrity and size test will write files with a size of one Gigabyte to the selected storage device. All files that are written to the device will be named x.h2w with x starting with 1 and counting up. The software will then verify the files that have been written to the medium and display a report once the verification has been completed.
The program will display a rating and a detailed report on the data that was written correctly and incorrectly. The tool can for example be used to test if the advertised capacity of the USB flash drive or hard drive has the correct size.
H2testw is compatible with Windows XP, Windows Vista and Windows 7 and does not require administrative rights.
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An even quicker way to open Task Manager is by pressing Ctrl+Shift+Esc.
Win+Pause used to be the goto shortcut for me since… W95… Ms recently hijacked it and you now get Sysinfo. Device manager is still accessible this way: the second to last link at the bottom.