Full microsoft safety scan has stopped working

Question

Hi,

I have been running the microsoft full safety scan because I thought my computer has malaware. (The reaoson for this is that I kept getting messages suggesting that I had a virus from zationchrosity.com and directing me to various websites) My usual antiviurs (Webroot) did not pick up anything and then I could not made windows defender work (I, it gave an error and said it was blocked by group policy error OX800704ec)

. So I decided to download microsof safety scan and run a full scan. It has been running since midnight and it is now 5pm (it may be that it did not run during the night ? I went to bed , I do not know) . Anyway now seems to have got to the end (almost) The bar looks completely green but for the last 30 min has been stuck saying

Currently scanning

E:|Windows\winsxs\x86_wwf-system.workflow.runtime_...|System.workflow.runtime.dl

It also says Files scanned 5862553

Files infected 579

Any ideas of what to do ? because it just seems to be stuck

Thank you

M T