C'est stating that my copy of windows 10 will stop
En fait, it is telling you that your version on Windows will no longer be supported après April 10th, 2018.
You are presumably using an out of date version of Windows 10.
Windows 1511 will no longer be supported après 10.04.2018.
Microsoft is planning to release its next Windows 10 mise à jour in April. The logiciel giant hasn’t officially revealed its name, but the company is planning to label it the Spring Creators Mise à jour. Microsoft has, cependant, revealed the Spring Creators Mise à jour sera released in April. In an mise à jour to a blog post today, Microsoft provides a Windows 10 overview that includes the April release date, and plans to support the OS version until October 2019.
Source Windows 10’s Spring Creators Update will be available in April - The Verge
See également Another Windows 10 version overview – Red Pill BLOGS and Windows lifecycle fact sheet - Windows Help
