
The message is a genuine notification from Microsoft regarding the upcoming end of support for Windows XP.
This means the XP operating system will continue to work but no further updates or security patches will be released.
The ‘click here’ link in the message will take users to the Microsoft Windows XP End of Support Website giving users limited advice on what XP users could do:

It is possible that scammers may try to use this period to put fake versions of this message or websites online looking to route people away from the genuine site and use this opportunity for financial gain. As we always advise view any online pop-up message with caution and check websites carefully when looking for online software updates or purchases.
If you think you need independent advice and support when looking to upgrade software on your computer the Norfolk Trusted Trader scheme has a number of members who offer IT support, advice and repairs.
http://www.norfolk.gov.uk/Community_and ... /NCC051378