i have always tried to keep my PC in good shape, by always running Disk Cleanup, De-frag etc, but have noticed a problem. I found that some of my photos have started to become more grainy and of poor quality, and i also noticed that they have filenames in blue. i looked this up, and it appears i have compressed the pics with Disk cleanup. is there a way to de-compress them, and will it bring back the quality in them? i am totally gutted about this.