[Trisquel-users] New install on a full encrypt disk

[gnuser]

Hello.

I have performed a fresh install on my laptop, and I used full disk  
encryption. If I want/need to install the OS again, to bring everything back  
to the defaults, do I need to make new encryption (and wait for the long time  
it takes to do so) or can I just install the OS inside the already encrypted  
disk?

Thanks in advance!