Stop xp updating time
Is it possible to disable the "Support for this operating system is ending" warning that the current version of Microsoft Security Essentials displays on Windows XP?Based on a quick couple of searches, this warning appears to have been added in the KB2949787 update to Security Essentials, but I can't see a way to revert just that update.
While you could still try to prevent it from upgrading, there's no guarantee that the old MSE version would still receive updates as usual.Considering the notification is generated by the user interface executable, you can override it with an earlier version while keeping the up-to-date engine.As commented by @saulius2, the registry changes were detected as a tampering threat.My previous method has been abused by malware creators for malicious purposes, and that's why MSE complained about it.To solve this issue I've since switched to a different approach.In case you applied this workaround before, just follow steps 6-7 again.
Eventually you will need to switch to a different antivirus solution, as the MSE definition signatures won't be updated anymore on Windows XP after July 14, 2015.
For the time being, however, the steps below should do the trick: Microsoft Security Essentials will not be available for download on Windows XP after April 8, 2014.
If you already have Microsoft Security Essentials installed, you will continue to receive anti-malware signature updates through July 14, 2015.
of Microsoft Security Essentials was deployed on the 26th of March, 2014.
On Windows XP, the status displayed permanently became Amber/Yellow indicating "Potentially Unprotected." After the 8th of April, the date support for Windows XP ended, the status became Red indicating "At Risk." This is by design due to the fact that Windows XP end of support is 8 April, 2014.
As Microsoft no longer provides MSE for download on Windows XP, you need to rely on third parties who can provide the old setup package.