I finally solved this issue and though id share it with edugeek community.

I had a problem where my windows updates would only install 1 by 1 , for ex. you would have 15 updates. and after first one the rest fails.

Windows came up with error code "WindowsUpdate 80070718" . And there isnt much info anywhere on net about it at all.

I found out that the guy who looked after school before me enabled disk quotas trough group policy on the default domain policy and set it to only 280mb(Who configures the default domain policy right?)

Computerconfiguration>admintemplates>sytem>diskquo tas

This didnt affect anything apart from windows updates strangely enough.

Hope that if it happens to any of you in future that this is of some help.