This is dictation.
This scenario has come up before. Someone takes a good working drive out of one computer and sticks it in to another computer as a means of fixing the bad drive. Unfortunately, that is not the best way to do things.
The OP needs to understand that each computer model has specific differences because of hardware changes made by different manufacturers, and even the same manufacturer for different model numbers. For example, I have a Dell 745 running Windows 7 and also a Dell 755 running Windows 7. Although the Windows 7 disk looks the same, the two computers require separate drivers. So I cannot just take a copy of the operating system of one computer and place it in another computer.
If the system is working for you, your best just to leave it as it is. Any attempt to install Windows 7 again from the recovery partition could only make things worse. The recovery partition for the Toshiba laptop is specific to Toshiba laptops and even specific into the model number.
I hope this clarifies the problem.
My understanding is the OP has a Dell Inspiron computer and has replaced the hard drive from a working Toshiba computer. And the OP says it does work, but he just wanted to clear out the unused programs by using the recovery partition. The general consensus is that you cannot do that and that is by design, not by accident. The recovery partition was never intended to be a general-purpose recovery for different installations of Windows. That is why Microsoft tells users to make up a backup of their computer system when they first get it and save it on a DVD for use in case of an emergency. The OP should have created a recovery DVD for his Dell Inspiron after he received it.
But if there is something wrong in what I have said, somebody please correct me.