This week Microsoft have released a plethora of Windows Updates and as i keep telling everyone remember ,
Windows updates are your first line of defence
In the battle to prevent malware / virus infection
Windows updates are only automatic in Windows 10 and in other versions of Windows you do need to check.
If Windows updates are not installing then you have an issue / issues that need to be fixed.
Microsoft , this morning also released a critical update to combat , you again , a problem with Adobe Flash details of which can be found in the link below.