Too many things stored? You mean just documents, photo's, video's, userdata like bookmarks, etc? You can backup those. And I always split up my first hard disk into a C:\ partition of ~100 GB, and a D:\ partition of the rest of the drive. I then move all the document operating system links to a subfolder on the D:\ partition, and have all my data on the D:\ partition. if some is wrong: copy the data you need to keep to the D:\ partition and re-install within the C:\ partition. Currently I use a SSD of 250 GB (Samsung EVO 840), so made a hard disk my "data" drive, and moved steam to my SSD. This way, I can reïnstall my system within 20 minutes after I think its needed, by just making a backup to another partition/disk, and format my system partition.