There has been some issues lately since my computer randomly freezes up or my monitor just goes black, forcing me to restart my computer. It's also getting noticeably slower as well. I built my desktop back in 2010 or 2011 and I figure it's about time I start dusting off my computer. I've never done this before so I don't really know what is a good brand to use. I'm afraid to damage my computer parts with a bad compressed air brand. Any ideas?