"Is there a recover disk to restart with if I have my original install no.s?" I believe you are referring to reinstalling your Windows 7 to factory condition.
Go into disk management and see if there is a recovery partition: if so you should be able to do that.
On some computers pressing F11 (sometimes a different set of keys) at boot up leads to the ability to reinstall the manufacturers factory condition.
Refer to your computer's manufacturer website manual if necessary.
If you don't know the valid product key, look for it on the body of the computer.
I also like to use www.belarc.com and scroll down to software licenses.
There are programs to determine the license key but I like to use belarc because it includes information about the computer in simple form.
It's been awhile since I've re-installed Windows 7 to factory condition but I don't recall it being necessary to enter the license key for a factory condition.
Back up your data first. Creating a system image backup is still a good idea even if the system is running wonky.
You never know what can go wrong when attempting to return to factory condition.
BTW, have you tried troubleshooting what's wrong with the computer?
Not knowing enough about where to get started it might be a good idea to run a hard drive diagnostic.