

They already have a forever mouse - its called Logitech MX518 - at this point its over 18 years old, and beside some small paint deficiencies it has no other issues. And it was used quite heavily - it survived years of intensive button mashing in Diablo2 and many other games…
You dont need to wipe anything, just shrink the filesystem from a live system.
Then create a new partition, which you encrypt and mount…