ah good, glad to hear that solved it! Once Win10 launches I'm sure there's some compatibility checking that we and all the other apps will go through so that PCA doesn't barf.
I haven't actually heard of your specific situation - usually PCA complains at install, and if you get by that then you are ok. What happens if you try to re-enable Webroot?
I assumed it wasn't officially supported but saw other posts from you where you mentioned you were trying to make it work where possible. Do you have any hints on how I can make it work?
We don't officially support Windows 10 yet, since it's still in Beta - we have heard reports of the Program Compatibility Assistant jumping in and preventing Webroot from running in some cases.
I am having an issue when I try and install Webroot on the latest Windows 10 Preview Build it pops up for a few seconds, then it tells me Windows Defender is turned off, then that Webroot is turned off. Then Webroot no longer shows up and I see the Windows Defender icon back in the system tray.