I work for a company that uses Windows 7 for end-user computing. The Windows 7 computers are updated via a WSUS installation, and access to Microsoft Update is blocked.
We have a problem with a number of websites whose certificates appear to be invalid, though they are perfectly okay. The problem is that Windows 7 apparently does an on-demand update of root certificates through Windows Update rather than rolling out a monthly update, as with Windows XP.
Now that Windows Update is blocked, how should root certificates be updated? It appears that WSUS is not handling this feature.