Just use the free tool Samsung provides.
https://www.samsung.com/semiconductor/minisite/ssd/download/tools/
Install new drive, clone, shutdown, unplug or wipe the old drive.
If you need to reset the local accounts password you should lookup "Offline NT Password Recovery".
It is a free tool that you can burn to a disc or make a bootable usb drive.
You can try cleaning the pins by inserting a piece of paper folded over on itself a few times. Do not slide it! Just insert and remove over the length of the slot.
This saved me some pain when I removed the GPU and some unseen grime was stuck to the pins.