I have used my laptop, I have already bought with Windows 10, for many years. I want to change the hard drive because, over time, it got slower and slower. But my problem is: How can I transfer my old Windows to the new hard disk drive?

• As I said, Windows was originally included to this laptop, which means I don't have product keys or digital licenses
• I want to transfer the whole OS with all my files without having to buy a new product key

I have read tutorials which recommend using third-party software like that from Paragon. How safe is this solution and does the migration work without having to activate Windows a second time?