Windos XP still lives! well, not officially and not thanks to Microsoft, but a nice hack has been discovered that allows upgrade XP until 2019, which gives us users a feeling of being more secure with this system that many of us still use. Doing a bit of memory remember that on April 8 the support of Windows XP was put to an end, more than a month ago, some companies were not able to migrate their operating systems on the date established for the end of support and these through payment continue to receive updates and security patches… And for home users?
The solution: "Windows Embedded POSReady"
According to Wikipedia tells us:
This operating system is the one used by ATMs (automated teller machines), pumps, points of sale, some consoles and video game machines, etc.
Well, the interesting thing about this is that Windows Embedded POSReady 2009 is based on Windows XP Service Pack 3 and the best thing is that ! has support until April 9, 2019! 
Of course, normal users cannot download these updates, so the following hack opens up the possibility of getting these updates in a two-by-three, through a registry modification (regedit), which by the way is very easy to do. Apply.
Step 1:. Open the notepad
Step 2:. Copy and paste the following into it:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESYSTEMWPAPosReady]
"Installed"=dword:00000001
Step 3. Go to the menu File> Save as> Type (all files) and give it any name, the important thing is that it has the extension .Reg
In such a way that the saved file is as in the following capture:
Now all that remains is to run that file so that the information is added to the registry and that's it, you're ready to receive updates likes a boss until 2019 
Run Windows Update and you will notice that there are updates available.
Shortcut:
If you want to avoid doing the above, download this file, unzip and run.
Clarify that the hack currently works on 32-bit systems, for 64-bit systems the procedure is somewhat more complicated as explained in this community.