You will note that this is the latest Samsung NP-X25K000 Bluetooth USB Adapter Driver version 5.1.2600.2180 for the Windows XP platform. You could try and run this or install this driver in windows compatibility mode however. This was the last driver to be released in September 2016.
The Samsung NP-X25K000 Bluetooth USB driver for WinXP has been added below. You can also check for other Samsung drivers on this website as there are a number of variations of the hardware which Samsung had used over the past 12 months. This includes but not limited to the Samsung NP-X25DOCK Bluetooth USB Adapter Driver. Check your hardware to ensure that you have the correct hardware before you install this driver.
If you have an older version of the Samsung NP-X25 K000 Bluetooth USB Driver then this newer driver will simply install over the older driver and replace it. If this is the same driver then the software will state that you already have the latest driver in your computer. Unzip the file and click on the driver inside.