My PC blue-screened during a reset and now I'm stuck on "System Recovery Options" every time I boot. Startup Repair doesn't fix anything, and I don't have any recovery images in my PC. My last option is to reset via command prompt but I can't find anything on Google that tells me how to do this.
I tried something like "C:\Windows\System32\sysprep\sysprep.ex" but I received an error saying the path didn't exist.
Sysprep doesn't restore your system. Or at least, you need an image file to go with it. Sysprep is used in enterprise to automate the deployment of multiple images to many PCs (like if you got a hundred new PCs to deploy). I don't see the point of using that at home.
I would try the following two:
1- Try to boot in "Safe Mode" and use "System Restore".
2- You could also boot from the Windows CD and select System Repair from there (it's more evolved than the default Startup Repair you tried and usually has a higher success rate).
If neither of this works, then I'm afraid you will have to re-install Windows completely.