Hi My PC running Windows 10 just installed Windows update KB5022834. On restarting the PC I have been unable to run Firefox, clicking the desktop icon, or even choosing run as Administrator does not help. I even downloaded the latest installer from Mozilla website. I ran the installer which appeared to be doing it's thing. Then it just went away and nothing happened. I have uninstalled that update which has fixed the problem. But I suppose it will happen again when Windows runs next update. How can I stop this update from ever installing? Will my PC be more vulnerable if this update is not able to be applied? Thank you.