Microsoft is pushing out a fix to a bigger number of affected computers, but your PC may need your help to receive them.
How-To Geek on MSN
Microsoft Secure Boot certificates expire June 27—here's what that means for your old PC
Most PCs should continue working fine, even if they don't receive the updated certificates.
A crucial Windows security certificate just expired - how to check your PC ...
Your Linux PC has a Secure Boot problem - what to do first (and the workaround to avoid) ...
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