Windows Security Update KB4343909 (Very Slow Log In Times)

[Safa]

Hi All

I did a mass install of Win 10 this summer on student machines

Every machine including the new PC's we purchased (Dell Optiplex AIO 3050's) will take about 6 to 10 mins to log in;

even with local administrator plus other odd issues such as the start menu not being responsive.I found that Windows Security Update KB4343909 was the culprit and uninstalled it.

Might help a few of you.

[gshaw]

@Safa what was the symptom in terms of where the login got stuck? Was it either "Preparing Windows", the welcome animation or a blank black screen?

[Safa]

Its not just the first time you log in; its every time after that as well.

 

I have the welcome screen disabled via GPO and even logging in with local administrator it will take around 5 minuets before you have access to

the start menu.