getting BSOD - unmountable boot volume

Hi, all. So my computer (lenovo laptop z585) froze some time last night and when i tried to restart it this morning it wouldnt boot. ultimately i discovered that it was giving a BSOD - unmountable boot volume and refused to boot, even in safe mode, or even load the repair software. Searching for help with that, I came across a post on this forum for help on that where a couple people mentioned changing the BIOS IDE setting to get the repair software to run. I did that, and it worked and ran the software, but after fixing a couple things it got stuck on what it said was a bad registry entry and said it was unable to fix it. so while i can at least get into the repair software and command prompt via that, im unable to do anything else. it still wont boot, and the repair software cant seem to do anything else for it.

anyone have any ideas for anything further i could do? i would use a win 7 repair disk to try to fix it but i dont have one and my only burner is on the laptop thats not working. is there a way to make a usb drive usable as a repair disk? anything else i can do?

thanks.

this is the error

i was able to get a windows repair disk from someone, but the software that it loads is the same as what the laptop loads on its own, and it doesnt seem to be any more able to fix the problem than the built-in version was. even running chkdsk from there doesnt help, it still says the disk is write-protected and wont run. any ideas? please help, im getting desperate here! thanks!

i tried running the sfc /scannow to see if it could repair the registry problem, but it didnt find anything wrong. running a econd time to be sure, but any other ideas?