I just bought a Lenovo G550 Laptop from the Microsoft Store. Brand New. I've had it for less than a full day. I started it up fine the first two times. I then started to install my programs (iTunes, MS Office, etc.). I ran a Windows Update. Restarted. And now it freezes at the "Starting Windows" screen. Right after the little balls form the Microsoft Logo. I'll even get the sound, although it's about a minute late. I've restarted it in Safe Mode, and it's fine there. I've tried using restore points, and it keeps telling me that the restore points have been deleted. I've tried disabling both the WLAN and the USB through the BIOS. I've tried disabling all startup programs through MSCONFIG. Still nothing. Does anyone have a suggestion? I'd format it and reinstall Windows, but it didn't come with a disk, and I didn't have a chance to create a Backup. Please Help!!