Of course none of the above works if the thief has half a brain and re-formats the laptop’s internal HDD and installs their own software before using the laptop.
After all the cost of software today for the home user is a lot less than the hardware.
The thief would only have to buy a legitimate copy of W7 and install it on the reformatted HDD or even cheaper yet just get a free copy of a Linux OS. They could probably get all the rest of the software that they need for free just by downloading it.
Hopefully this is a dumb thief.