My internal HD is total 10GB, last night it was 1.80GB, which is correct , but when i turn on my computer today, it reads this: I check the temp folder, no large files there. I did a clean up, nothing. I notice it does this sometimes, but haven't done it in a long time, sometimes my internal hd will just disappear and come back a few hours or when it wants too. I also notice in safe mode it says i have 2.30GB left, but when i get out of safe mode it says 1.80GB, but right now, it reads 900MB ???????????? Should i do a check my hd for errors?