Windows Update Error 800B0109

This Windows update error 800B0109 means that the WSUS signing certificate is not trusted. Windows 7 64 bit will not install the update if the certificate is not trusted. If this happens to a regular home user who gets updates via Microsoft you should check really hard to make sure you do not have some malware that has hijacked you WSUS process.

However is my case I used System Center Updates Publisher to push out Adobe updates and I created my own self signed certificate which is not trusted by the clients. I either need to add that certificate to the trusted store on each computer or create a new cert using my CA that is already trusted by the clients.

Because the root goal of this exercise was to eliminate visiting each client for Adobe updates, I will try the CA route and see how it goes.