Two questions

Thanks for answering all my other questions, all you guys that have helped I have learned alot from this forum. I have two questions to ask. first I was asked by my friend what is the first thing you do when you have a computer that freezes. And second which is totally a diffrent system I have a system that when hooking and unhooking usb devices the devices after they're unplugged don't seem to go away from the device manager, what can that be? Again thanks.

 

The first thing I do when my computer freezes, if it does, I figure out what program it freezed on and try to get an update for it. I think its always compatibility problems., but hey what do I know? lol
For your second question,
I believe they are still there because they are still installed on your pc, If you don't want them there than you can choose to delete them from your device manager in the properties. I hope this helped.