Hello James,
With your new Samsung SSD you got also two programs called Samsung Magician and Samsung Data Migration. If there wasn't any cd on the box, then just go to Samsung's site and download both programs to your actual SSD.
Use the Data Migration to clone your actual SSD to your new one.
There is no need to reinstall anything, so there is no need for Windows serial number.
You will need to connect your new SSD to your computer in order to clone the old one. You have two options:
1. If you have an internal free sata III connector, then you can use it to connect your new drive.
2. If you do not have an internal sata connector or if you have a laptop, then you should buy a usb to sata III cable like this one:
US $8.49 15% OFF|Ugreen sata usb3.0 turn desktop solid state drive 3.5 inch hard drive transfer cable data cable easy to drive line 2.0|ugreen cable|cable datasata usb3.0 - AliExpress.
After you have both drives connected to your computer you can start the cloaning process as instructed by the Data Migration program.
After the cloaning process is finished, replace your old SSD with the new one and start your computer. If everything is OK, then you can delete the old one.
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