Because only moderators can give approval and moderators are avast team members, so they aren’t here all of the time. Though some long time forum users can still see the post we can’t approve it.

I don’t why it might have been blocked as there are no URLs, etc. which in many cases is the cause for blocking.

Though you say you attached a .pdf, that isn’t an approved attachment and would no doubt have been disallowed - hence your 4 .jpg images. I just wonder having tried to attach a .pdf the post was flagged/blocked awaiting approval.

I can’t really answer your question, but in the past I have had several windows updates that failed, no matter how long I tried. This could be that there is some sort of prerequisite that isn’t present on your system, unfortunately trying to find why is very difficult. The problem being failed updates are continually offered again and again.

In my win7 SP1 32bit starter edition (on an acer netbook) I have been trying to update from IE10 to IE11 and that fails every time and I can find no reason why. I have even downloaded the update for off-line installation and that too fails with no meaningful indication of why.