This problem has been around since the release of Vista and is common to bot Vista & Windows 7. The reference to an "anti-virus" possiblby bing the cause, is simply a SWAG on thir part. I have seen this problen show up on "new" systems and systems that
have never had an anti-virus installed on them. That not sysing that an anti-virus could not cause this error but it clearly is ot the only potential reason. From what I have seen any application that holds onto system resources (Hung, Service, etc...) can
cause this problem. I even seen it caused by defragging software that runs resident on the system, such as Diskeeper. In the case of Diskeeper if you shut down the "service" and disable it, Restore will tpically work again, that's asumming that it was the
only culprit in the sytem.
Every time that I have run into this I have had to use msconfig to force a "clean boot" and then look for processes that are running on the system that aren't OS related and then begin by shutting them down one-by-one until I find the culprit. If that fails
then I start sutting down and disabling "Services" that are not OS related or that are not system critical. As you all know this problem is a real pain in the A _ _ , and so is trying to find the root cause.
For now I rely on Acronis's backup solution because I simply cannot trust Microsoft's System Restore application. Under XP it used work pretty reliabily but not so under Vista or Windows 7.
If anyone evry finds a programatic solution to this issue I would love to hear about it!
Best regards