every time i start my computer this error message pops up. "cannot copy host_new: Access is denied. make sure the disk is not full or write-protected and that the file is not currently in use." i have no idea what this is and i think it might have something to do with my task manager not showing up. i installed an anti virus software on my computer, ran a scan and it found alot of adware but the one thing that was infecting my computer was a program called rogue pcdefender. so i quarantined the file and it seems to have deleted of my computer. but task manager still won't show up, and that message pops up all the time on my computer. if anyone has a similar problem or knows how to fix it please help.