[Paint.net won't open and won't uninstall]

Thank you, its all fixed

[Paint.net won't open and won't uninstall]

Paint.net has always been working fine ever since, a day or two ago when I tried opening up paint.net it came up with an error message and it wouldn't open. I deleted the shortcut, so I didn't get to take a picture of the error message. I don't seem to be able to make another shortcut for paint.net, I tried uninstalling paint.net but it came up with 'There is a problem with this Windows installer package...'  I tried re-installing paint.net also but the installing part failed, there was some error.

Paint.net is very useful, I've had it for about 2 years and I've never ran into any problem.