As beautiful as it is when it comes to looks, Icecream Sandwich comes with its own set of bugs and quirks and issues that will get you frustrated. One of them is certain ongoing processes that get stuck on your notification window and would not go away no matter what swiping you do. It usually happens with downloads.
You are downloading something from, lets say, your mail application. The download started but it doesn't seem to be connecting to the server. The process is for ever running on the notification window. You are not sure if it is draining your battery or not. But you are almost on the verge of freaking out because you know that applications running in the background on an android phone will drain your battery like there is no tomorrow. What do you do in a situation like that?
What do you do when a download starts on your android phone and it doesn't get connected and the download notification will not go away from the list of the ongoing processes on your ICS notification window? Here is what you do to remove a download notification that you are not able to swipe away from your notification window:
1. Go to your Setting and from there click on the application manager
2. Once you are on application manager, swipe across the categories to find All. This will give you a list of all applications on your phone. Your application manager has three categories - a) Downloaded b) Running and c) All.
3. Once you select All, scroll down the list of applications to find Download Manager.
4. On Download Manager, click on the button that says Clear Data. Once the data is cleared, the download notification on the notification window will go away.
Note: When you do this, the history details of your downloads will be removed from the download manager. Your downloads will not be affected.