It happened when I upgraded to Windows 8. I managed to download most of them but there were a few that failed. Windows Update says the error code is B on the failed updates. I did a search for B in Google but the information is conflicting, confusing, and for the most part all the articles I've read go around in a loop. I also came across an article on PC World which says to do revert my restore point - but that didn't work, either.
Apparently this has to do with the 'CBS Manifest' being corrupt, whatever that is. Ah, the "Windows Update won't update" error. This is a very common problem, as well as a frequently asked question. I did read the PC World article but, frankly it's an extremely shallow approach and won't resolve a deeply rooted problem when Windows Update is broken and has been broken for a long time. I've also written an article entitled " Explained: If you already know for sure that your Windows Update is broken and you need to fix it - keep reading below.
If you aren't sure if it's broken, please read the previous article first, then come back to this one. I suggest you bookmark this page now so you can come back to it at any time. Windows Update Won't Update I've written step-by-step instructions on how you can fix Windows Update if it won't update, or if it's completely broken and won't update at all regardless of error message , including how you can fix the error 0x also known as error B.
Here's a summary of what you need to do: Run the System Readiness Tool Step 4: Reset the SoftwareDistribution Directory Please note that the steps below are cumulative; as such, please follow them from top to bottom. I'm getting a lot of people asking for my help even though this guide is fairly straight forward and definitive.
If you are a computer novice and this guide doesn't make any sense to you, OR if you have followed this guide to the letter and still cannot get your Windows Update to work, I can most likely fix it for you via the remote desktop support I offer - for a nominal fee. Simply contact me with your problem and I'll get back to you as soon as I can. Alternatively you can view my online resume and qualifications here. I suggest you read the guide before you contact me, first.
A dirty file system can cause all sorts of data corruption and can most certainly cause Windows Update to fail. To run chkdsk, do the following: A new window will appear; look for your C drive icon and left click to select it. Then, right click over top of the selected icon and choose Properties from the dialogue menu. A new window will appear; go to the Tools menu. Under the heading "Error Checking", click the button that says "Check Now".
Ensure that "Automatically fix file system errors" is check marked, then click Start. You will most likely need to reboot your computer at this point. Proceed to the next step. Open an elevated command prompt. EXE or "Command Prompt" to appear in the search list, then right click over top of it and select "Run as Administrator". Use your mouse to highlight the text below: Go to the command prompt window, then right click in the middle of the window and select Paste from the dialogue menu.
Press Enter on the keyboard to execute the command. After the system file check completes, highlight the following command using your mouse: If Windows update still won't update, then proceed to the next step. To get started, download the System Readiness Tool hotfix: