Hi, i'm buying Asus vivobook (4gb ram, 500gb hdd) with the win10.
I only use laptop for surf net or excel. No playing game.

After 2 years, my laptop now become very slow(actually is lag like hell) and the disc usage always show 100%.

Due to the ram is built in on motherboard, so I can't add more ram for my laptop.

So, i'm planning to downgrade my win10 to win7 as I only surf net and excel. May I know  win7 still can be used on my laptop? Because I Heard some people said win7 already not supported by Microsoft.

Thank you.