Microsoft has stopped producing and distributing anti-malware signatures for its Security Essentials software installed on aged Windows XP PCs.

The July 14 deadline was announced a year and a half ago, when Microsoft backtracked from earlier decisions and said it would extend a hand to Windows XP users.

“To help organizations complete their migrations, Microsoft will continue to provide updates to our anti-malware signatures and engine for Windows XP users through July 14, 2015,” the company’s Malware Protection Center team said in January 2014.

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