Hi Guys,
Fletch, I am glad I found this thread despite it would be nice if the subject/title contained at least something about USB or removable media. “Disable alerts” sounds sounds too broad. It is not a criticism though.
Yes there is a weirdness in CFP regarding Removable media.
I was going to report something like that but… there is always lack of time.
Probably it should be called a bug … actually two of them.
I will try to describe it, but before that:
1) Vettetech, it is nothing to do with Installations. It has to do with ordinary Running Apps from USB/stick/etc; (and you are/we are right about “Trusted”, but partially)
2) Fletch, to make your life a little bit easier You may do the following;
a) Create a permanent drive for the USB device, from which you are runing your apps.
b) After you run application or all applications from USB and replying to all Alerts
Go to Defense+ rules and set all apps. you are just fired up as Trusted. Sure you may have set that for some already, but if not – do that.
Note: this is a workaround and it will help you temporarily until… the bug #2 will be fixed (see below)
Well, to test CFP behaviour regarding this problem just get Portable Applications from
http://portableapps.com/ (those are very nice to have anyway – good stuff!)
and play with that.
So you connected rather re-connect your removable media.
If you did not set the drive for that as permanent System may give you any drive letter. From that perspective repeated alerts For Applications even when rules were created previously kinda understandable and one may say CFP is not to blame. Drive letter was changed. So it means that the rule does not exist. It is there but “almost” which doesn’t count, because T:\Portable Apps\Mozilla\Firefox.exe is Not Equal to Y:\ \Portable Apps\Mozilla\Firefox.exe . Who will argue?
My opinion is it should be addressed by developers. It should not be like that even with drive letter generated by system. The rules created for such Apps should have some additional options to set. (this is just a thought)
At the same time even if you set the permanent drive you may receive Alerts unless as it was pointed above you will reset Treat As for those as Trusted. The highlighted combination results on “Alert-less” run on next reconnection of the device…
But… here is the thing (bug #2 as I called it above), which has to be fixed for sure.
You worked with portables. You created rules. You disconnected the device and you don’t need them for a while. You carry on with your everyday work, which is installing and uninstalling hundreds of applications. What else to do? 
And the time comes and you gotta clean the mess.
You fire up Purge. Sure what you see is the list of 269 entries (old rules) for non-existing/uninstalled applications.
You got it I think already, I hope…
Yes. You have only 2 choices here: Purge All or not to Purge All.
You don’t have a chance to choose a subset of rules you don’t want to Purge. Remember?
There are few dozens of perfect alive rules those 269 entries there.
Exactly! Those apps cannot be seen by CFP now somewhere on disconnected device, which is in your pocket now. It is kinda correct.
From the other hand it is not. Those apps are installed and functional but you Purge and those perfect rules of existing applications are murdered. They are innocent victims of careless Purging.
Next time you re-connect … go through Alerts / rules recreation… all for nothing…
Certainly the same applies to Defense+ and to Firewall rules for those “removable apps”.
Something has to be done in this area. What are you opinion(s)?
My regards