Question I have windows installed on M.2 is it okay to use all the memory without the risk of it slowing the pc down?

[Entopian]

I was always told you needed to leave 15-20% of an HDD space free to avoid having problems with the computer slowing down or having problems does this apply to M.2 SSD or would I be fine to use all the space?

 

[USAFRet]

I was always told you needed to leave 15-20% of an HDD space free to avoid having problems with the computer slowing down or having problems does this apply to M.2 SSD or would I be fine to use all the space?

Yes, you need to leave some free space.

This is for the TRIM function to be able to do its thing.