In this guide, you will learn how to troubleshoot the issue in easy-to-follow steps. If Windows 10 isn’t recognizing your hard drive, it’s time to get it fixed. Your computer needs a hard drive to store local information such as your files, software (including the Windows 10 system), and other important data that allow your computer to operate. While it can be fixed, the “hard drive not showing up in Windows 10” error is a distinct problem.