I have a laptop that won't boot into Windows 7 64-bit due to a bad update. It also won't boot from the recovery disk. I can get into the setup options. If I install Ubuntu from the Live Disk, can I use this to reinstall Windows from the recovery disk?
You can use another large USB pendrive to install Ubuntu to, and this will get your laptop working again. You will just have to boot off the installed pendrive and run off that. If you have something like an SD card reader in the laptop you can also do the same thing for a large SD card.
In the long term you can get the hard drive in the laptop replaced and you will be able to install Ubuntu to the hard drive, which will boot and run much faster than the USB pendrive. It sounds like you may need to have the optical drive replaced as well.
If you want you can approach the OEM who manufactured your laptop and ask for a set of Windows installation disks for your laptop. You will need to provide them with the full model number off the label on the bottome (not just the general model number) and they may charge you a fee for providing and shipping the disks to you.