Windows 7: BSOD at startup, error 0x000000ED

I love how you reply so fast.
Anyways, I booted up the USB successfully. It wants me to apply repairs to my computer and restart.
I thought I was supposed to select the command prompt and do the chkdsk action.
Should I "apply the changes and restart" ?

EDIT: I have the option to say no, which brings me to two other options:

1: Use recovery tools that can help fix problems starting Windows.
2. Restore your computer using a system image I created earlier (does that remove files and programs?).

Do you have a system image? That would restore the computer to the state it was in at the date the system image was created. Using recovery tools would allow you to run the disk check. Repairing your computer would have tried to do a startup repair and probably a disk check, as well, but it would have happened without notifying you of what it was doing.

No, it's likely I didn't make a system image. So what are you trying to say, should I "apply the changes and restart" ? Or say no, and use those recovery tools?

Use the recovery tools. Running a disk check will not prevent you from using the repair tools later, so it is a good first step to make sure the disk is clean and does not have any errors or to fix any errors it does have.

OK, so I did
chkdsk /r c:
and
chkdsk /r d: (this one took 5 hours, ugh)

However, at the end of both chkdsk, it said at the end it failed to transfer logged messages to the event log with status 50.
Also, you said to run the chkdsk again it it says "Windows has made corrections to the file system," and this happened to chkdsk /r d: but it said it was in use by another process, and it gave me the option to force to dismount it. Should I?

Yes, dismount it.

I have used the disk check on c: and d: .
Do I restart it and see if it doesnt have the BSoD?

You can try to start Windows normally now that errors have been corrected on the disks if both came up saying that no problems were found.

Thank you so much, it worked!
Everything seems to be running normally now! Thank you again!

Just one more thing, how can I prevent this from happening in the future?

Hard disk errors usually occur due to improperly shutting down your computer. If you live in an area prone to electrical outages, think about buying a UPS. If your system becomes slow/unresponsive, try to shut down the computer normally even if it takes a long time. I know this can be annoying (believe me, I had application hangs that took up to 53 minutes for shut down), but it will save your hard disk from having errors and prevent damage to the disk.

Also, it is a good idea to run Disk Check with both boxes checked at least once a month. You should run with Automatically fix file system errors twice a month (one of those times will be covered by having both boxes checked).