1. There is a thread already.
2. Lubaby has a good suggestion, although it is manufacturer specific.
3. Brisker has.a good suggestion, although not such a good possibility.
4. Do you have any windows install disks?
5. You can reset the pw with numerous softwares, and not much experience.
5. Take out the hard drive, and put it in an enclosure.
No matter how you access the hd, if your goal is to reinstall Windows, without the disk, you can't (again, unlesa like lubaby said your model came with a restore partition).