In May of 2019, an exploit, "Wormable Bluekeep", was discovered in Windows XP and later operating systems. For Windows 10, the fix was included in the security update so anyone who allowed their computers to update automatically got it.
The update was important enough that like with the previous "Wannacry" exploit, Microsoft created a fix for the out-of-support Windows XP. Microsoft is strongly encouraging everyone who still uses Windows XP to get this fixed.
Details can be found at from the Microsoft Support site.
ASM has, for years, provided new Windows XP computers for operating NanoScope brand Atomic Force Microscopes. We recommend that our customers ensure that the fix for this exploit be installed on your computers.
You can find the fixes at the following locations:
You might also want to make sure that your computer has all the updates between Service Pack 3 and the official end of life on April 8, 2014. Softpedia has created an unofficial "Service Pack 4" which includes all these updates