windows 7 blinking cursor on a black screen

hello. as the title states, i have a windows 7 pc that won't boot past a blinking cursor on a darkened screen. it went through a chkdsk /r and lots of different things that took 50+ minutes; renamed some, deleted some, then rebooted. nothing. i went into the registry and opened a hive and made sure the bootup went to explerer.exe -- nothing.

then i decided to take some files off the drive from another pc. when i plugged it in, explorer showed a 'system reserved drive' -- in my case, m: -- and a 'local drive' n:. when i click on m:, it shows it to be empty, and when i click on n:, i get the window, 'n:\ is not accessible, access is denied' but does show there to be data on it.

so, then i right clicked on both drives and changed the security to allow everything for SYSTEM & Administrator (see, read, modify, etc.). i know i have admin rights to do this and everything is running smoothly, as all the files appear to be getting their attributes changed. now, i right click on both drives and see i have full rights...but i STILL can't see or access the files on n:! i can see the files as their attribs are being changed one by one, so i know they're there, but i can't manipulate them in explorer.

help and thanks!

Any one of several Puppy Linux ISOs, burned to a DVD, or installed upon a USB stick, should be able to read your n-drive [it may be a different drive letter, naturally] and copy off the folders and files you want onto to another external media.