|We cannot use the details from the other poster to evaluate how similar that one is to yours or what your problem actually is unless you give us details about your system. Include Make, Model, Hard drive type and size, reported free space, what your D drive is (partition/internal /external/flash drive/etc), what programs you have, what antivirus program you have, your system restore settings, your paging file settings, and everything you have already tried. Report all numbers/settings you can find including disk sizes listed in Disk Manager and size/free space reported in Computer/My Computer.|
If you have a tiny drive like the other poster, have you uninstalled everything you can? Have you reduced the % space system restore can use from 12% to 8% or so? Have you fixed the paging file to the amount of RAM you have? Have you run Disk Clean up? If you have at least 10% free, have you tried to defrag?
You do not Format C drive. That leaves you with nothing on the drive. Do you mean to reinstall your operating system from scratch on a clean drive? If so, this is probably a little bit drastic and premature. You would probably need to do it as a Factory Restore to get back to how they shipped it with nothing else in it.
Remember that a Netbook is really not a complete computer like a laptop is, it is a portable web browsing, email machine that can perform some things that a basic computer can. A little bit more than a smart phone (one of the older ones). If you try to load programs on it and save files, emails, photographs, music, you will very quickly run out of room. Keep the programs to the absolute minimum, store files on a flash drive and back them up at home on a real computer, run a good light antivirus program (Avast Free), or purchase a small laptop.
You have to be a little bit crazy to keep you from going insane.