In the first releases of KB947821, Microsoft warned customer sur le information page about it that it would appear to be stuck: it encore does that, but their warning seems to have disappeared.
J'exécute it sur mon système at this very instant and it looks like c'est stuck, but it isn't. Do not worry: just start it avant you allez à bed and forget it. Si cela encore seems to be stuck when you wake up, ensuite it really is stuck. You probably are going to want to run Système Restore, to any time prior to when your daughter had the ordinateur, depuis vous n'avez pas know what happened when she was using it.
But avant doing anything, even the KB947821, run a quick scan avec whatever sécurité programme you are using. Ensuite run checkdisk, but exécutez le complete scan (it sera a 5 step processus):
Allez à ordinateur, clic droit sur votre HDD and sélectionner Properties.
Allez à Tools, under "Erreur-checking" click "Check maintenant", and dans le little box that comes up, put a checkmark in both boxes, ensuite redémarrer.
It will run when it reboots, and will take hours to run, depending on how big your drive is.
When it gets through, open an elevated invite de commandes (tapez command invers le Start menu search box, ensuite clic droit on "Command prompt" when it comes up and sélectionner "Run as administrator").
Tapez in sfc /scannow, ensuite hit Enter, and let that run. It may take a couple of hours.
Ensuite and seulement ensuite get the latest KB947821 (keep a copy sur votre desktop or on a removable disque dur; they just released a nouveau version) and run it, as you have done. And run a complete système scan avec your sécurité programme, ensuite get Malwarebytes free version, télécharger it, mise à jour it, and scan your système avec it. That's your "second opinion" on sécurité. I get a "third opinion" également on occasion, one du online free scans, Trend Micro's House Call.
All of this will take a day. If your système n'est pas fonctionnel at that point, vous devez try Système Restore. If that ne work, vous allez have to repair Windows one way or another, by doing a repair installer or quelque chose du sort. Vous pouvez have to use the recovery console to get Système Restore or even sfc to work.
