I disabled UAC because it annoys me a lot, I will give it another go at default but I don't think it will remain on long
I use Dropbox to back up documents and important settings, I use the default system restore quite a bit, as for a system back up I just do a full system recovery if anything major goes wrong as everything important to me is saved to Dropbox
Plus this is a very dated PC and I'm looking to invest on a PC that doesn't require peddle power
, then I will be more cautious of the systems health and take all preventive measures