Windows 7 Fresh Install Won’t Update
You reinstalled Windows 7 recently. You want to update it. Windows update takes up 25% CPU and runs for an entire day but makes no apparent progress. It doesn’t even present a list of updates to install.
This Site has lots of info on the topic.
Install these items in order:
+ Servicing stack update – https://support.microsoft.com/kb/3020369
+ Convenience update rollup – https://support.microsoft.com/en-us/kb/3125574
+ https://support.microsoft.com/en-us/kb/3172605 which includes a WU client update