Windows 7 - Nothing will Update anymore

Recently everything stopped updating properly. The Windows Update when it tries to update will always stay at 0% and will never progress any further. It is also the same with the Micosoft Security Essentials that came with the computer it won't update anymore. Can anyone help me?

How do I reset Windows Update components?
Description of the System Update Readiness Tool for Windows Vista, for Windows Server 2008, for Windows 7, and for Windows Server 2008 R2
Cannot Update Windows using Windows Update

Try these one should get you working, again.

Something seems to be wrong with your "Windows Update". Check in Services that it is set to "Automatic". Else you can run a SFC /SCANNOW in elevated cmd. Maybe it can fix it.

PS: just saw that Richard posted even better solutions - LOL

How do I get to the Windows Update Services and what is SFC/SCANNOW in elevated cmd?

SFC /SCANNOW Command - System File Checker

Did you install new hardware? Did this happen after installing the hardware?

Click here and validate your Windows Genuine Microsoft Software

Type Services into Start/search and hit Enter. Then navigate to "Windows Update" > right click on it > click on Properties > and check whether it is set to "Automatic" or "Automatic (delayed start)".

Besides the other good advice here, make sure the time/date are correct on your machine. Windows update doesn't work properly unless they are correct.

I have given you the methods and tools suggested by MS. Give it a try.

Like Danielzxzx, I am having the same problem. Virtually nothing will update. I went to Dell who said they didn’t have the expertise to fix the problem and referred me to their business partner – Gizmo – who guarantee “No Fix No Fee”. Gizmo spent about two hours and gave up and said re-install. I have tried manual updates and using System Update Readiness Tool (Windows6.1-KB947821-v8-x64.msu). Tried Microsoft Fix it 50202 and manual reset windows update components. No Luck. Any clues?