You do NOT need to purchase a new license, or go unactivated. We can move that whole thing to a new SSD.
A SATA III SSD will be a direct drop in replacement.
Prices now are particularly good. 1TB Samsung for $88.
https://www.tomshardware.com/news/samsung-860-qvo-1tb-holiday-2019-deal
Assuming you have sufficient free space on an external drive in that dock, no problem.
You'll also need a USB flash drive of 8GB.
(Does your laptop have 2x USB ports?)
Assuming you have another drive with sufficient free space to hold the entirety of your current HDD:
- Download and install Macrium Reflect
- Run that, and create a Rescue CD or USB (you'll use this later). "Other Tasks"
- In the Macrium client, create an Image to your external USB HDD. Select all partitions. This results in a file of xxxx.mrimage
- When done, power OFF.
- Swap the 2 drives. HDD out, SSD in.
- Boot up from the Rescue USB you created earlier.
- Recover, and tell it where the Image is that you created in step 3, and which drive to apply it to...the new SSD
- Go, and wait until it finishes.
- That's all...this should work.