I had a bad experience after I did system restore. Some of my files in Sky Drive has gone away... I use dropbox and skydrive both, but some how files in dropbox which are almost upto couple GBs still are being downloaded. It's to be seen whether all my dropbox files are alive or not. Anyway, my 'very very' important documents have gone away.... I wish I knew this before than I would have not done the system restore.. sign... windows 8...