Nice one. I've always preferred a direct and simple route to log off/restart/shutdown and ever since the demise of XP I've run with this group of icons on my taskbar:
The whole range of components to disk access in various modes (sequential and the many types of random) is very involved but one component alone (seek time - the time taken to identify the location of data and then move the heads to the required ) is typically many times hat of the actual...
Next best thing to a nuclear assault - that will do nicely (but as a tight-pursed Yorkshireman I would still go for forensic wiping and get a few quid for it on ebay!
https://en.wikipedia.org/wiki/Julian_of_Norwich