If you haven’t updated your Windows PC in a while, you won’t be able to apply new updates unless you have applied your April updates. The June patches released last week cannot be put in until you download and install the patches from April. This effects Internet Explorer 11 on Windows 7.
Microsoft had warned Windows 8.1 users that they had to apply their security updates before receiving any updates past June 10.
If you don’t want to add the Internet Explorer 11 updates, you can always use another browser. You probably shouldn’t use IE 11 if you don’t update because of security.