hey guys, i have a 1TB HDD that im totally reformatting and I'm wondering about whether or not i should partition it. I've heard making a small partition to install the OS on can save some time and hassle if you get a bad virus, but im worried that if i dont give it enough space enough files will sneak their way onto that partition that itll fill up and cause me a ton of problems (my friend had a 40GB segment and since his itunes would automatically save songs on the C partition even though he put itunes on the D partition, he couldnt get any more music through itunes) so my question is, is partitioning worth it? if so, how much room should i give the OS partition, and is there any way to stop files from going to that partition?