Unplug all USB devices and try again.
After upgrading to Win 7 on my laptop computer, It went thru about 5 reboots of the system during installation....no problem. Then on the final boot phase it asked to accept the recommended settings for the system. I accepted, then it went to reboot for the final time.(I was excited to get finally get to see what 7 was all about, after 4 hours of the installation process) and..... it won't boot past the initial boot phase.
...then hangs up...with no indication on where the computer actually is in the boot process...(hangs up where the flashing underscore is) and won't go any further...(the next sequence of the boot process is where the windows symbol would come together)
What happened??? and How can I get my computer going agian...
Thanks for any help.

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