These issues seem to be connected with ‘Sure Start Secure Boot Key Protection’, as one user explains: The update has triggered boot failures on HP computers for a number of users. It also appears that the software giant quietly shipped yet another update ‘KB4524244’, which is a security patch for some PCs. In addition, Windows 10s’ February security also update broke some PCs and uninstalling the update resolves the problem, according to one user. If it doesn’t work, simply remove the botched update.
If you are affected by this issue, you should try restarting Windows at least three times.
