Windows 8.1 Open the Start menu by clicking on the Windows icon on the taskbar, and type defrag in the search bar. Select Defragment and Optimize Drives. Select the disk drive you want to optimize.

I recently moved to W8.1 and in the process of searching for defrag information about HDDs, I came across this mention of a SSD defrag bug in W8.1. Yes, it appears it still is. I just did a clean ...