I dont know what happened but i have a acer aspire s3 RUNNING windows 7 and it decided to stop booting all of a sudden. If i boot it into system repair it freezes, safe mode freezes every mode freezes. i didnt get any software with it so i cant boot from an external drive either.
How do i fix this?

thanks. Can you get into BIOS setup and run any diagnostic test for both hard drive and RAM module if these options are available?
If not, you can try make a bootable ISO disc for these tests one for the hard drive manufacturing or Seagate tools and use memtest86 for the memory sticks. Any ISSUES or errors shown prior to the problem?hey, there is no cd drive on my laptop and memtest wont work. is there anywhere i can DOWNLOAD the full windows 7 system reboot and launch it off my usb?im trying to run dignostics but something is preventing the computer from restarting so it cant run
Try disabling AUTO restart by checking this link http://pcsupport.about.com/od/fixtheproblem/ss/disable-auto-restart-vista.htm . Hopefully there will be error messages you can post when it happens next time.