I'm Chas.
I am new here.
I am posting in hopes that this may help someone else who had my problem.
(also, I am no expert. if anyone feels like chiming in, and advising and/or correcting me, please do. :))

I have a Sony Vaio Vpcsc31fm with Windows 10.
I use it for music.
Piano and drum programs.
it has been driving me crazy for a long time.
lots of glitches, drop outs. all that.
and the fan runs alot and is extremely loud.
I have tried many things.
but I think I just did a really good thing.
I disabled Windows Update. I got to it by clicking run > services.msc and so on.
my Vaio is doing well now.