Yeah, that sounds like a great idea in theory. In practice, this is horrible. You need to get people to bring in their laptops, wait until the HDD is switched for an SSD and then leave with a laptop that isn't new, but behaves as new. Then you need to switch laptops again in a year or two, because the rest of the hardware is now written off.

The cost of a new laptop is negligible in the grand scheme (~3m employees, 1k per laptop = 3B on a 700B budget) and saves them from a logistical nightmare.

Replacing all the HDDs bij SSD is a perfect example of being 'penny wise but pound foolish'.

That won't solve the problem, unless you're assuming that it's perfectly normal for modern applications to use disk space as working memory.

Windows security bloatware can still bring a system to its knees with an SSD.