Hello, My hard drive space is just going down i have no viruses. But i added it up there is 30gb used but it sais 50gb used and i have no viruses as i do a full system scan every 3 days and a power eraser check. So sometimes it will say 345gb space left and then an hour or two later without downloading anything it will go to 350gb space. And when i do download something for example something of 50mb space my hard drive space will go down like 8gb of space even though it is only 50mb. I have tried everything from disk clean ups to ananlyzers everything. Any suggestions of what is happening and what i could do to stop it. Please help