Screenshot I was downloading regular item on the firefox Never happened, it was certainly odd for to see download stuck at one place. This happened with firefox and other programs as well. I was unsure if this has something to do, but while in safe mode, this displayed Screenshot It extremely weird that End Task wouldnt end the process to it Instead, I'm left with a zombie task that refuses to die. I had ended the firefox in the task manager, However, looking into the task Manager, in Details tab, the firefox still remained, Even after few round of restart of the laptop, I open found the problem persisting, 'firefox is aready running, but is not responding the old firefox process must be closed to open new window When I accessed Disk Cleanup section, to perform the necessary steps, right after it starts, however the process bar stay at the same place. Even after canceling it, the whole windows explore will become unresponsive, accessing any folder, it takes time and wouldn’t load. Screenshot