As of 14th of January 2020, support for W7 has ended. If you are still using Windows 7, your PC may become more vulnerable to a security risk, however, if you are about to upgrade your devices to W10 and this is a transition period, you might be seeing the W7 end of support message displayed to your machines.
If you want to stop the message and you are using ThinKiosk you can simply enable this option below, while in the middle of upgrading your devices.
Applies to :
All version of ThinKiosk 5.8.15 or higher runnign W7