1 year old HP laptop, 1TB HD, don't know how long it's been there but saw that 700GB is being used in 2 separate folders, all numbers and letters no names to the files, ran troubleshoot, Ccleaner, don't know what it is except MS on that page said those 2 files could not be characterized and may affect my computer. All the files that show up are 221.184kb, about 40 lines worth, doesn't even add up from files I can see. I don't game, don't download movies, music, 99% of the use of the laptop is checking email and web surfing and watching Netflix or Youtube videos. I've seen this issue posted in a few places, not here, but other forums and no one has found an answer. I should only have maybe 80-100GB used, if that. The only place it shows up is in settings and "Other folders", C:\dJbpM_!O2OvW!eS`YA is using 379GB. C:\5GQF85RjZ40H6CXelz is using 327GB . Any ideas? Thanks in advance.