I am having a problem where processes are hanging and absolutely refuse to die. I have tried using the task manager and pskill
from the console (with admin rights) and while the program will state that it has killed the process it still remains and I cannot open a second process. This has happened with Opera and Truecrypt.
Operating system is Windows 7 Professional (64-bit). Rebooting the computer clears the hung process.
I also tried using a program called Ultimate Process Detail & Killer, which didn't help either.
Best Answer
Try the debugger:
Processes can be unkillable if they are waiting for an I/O or similar operation to finish ("uninterruptible sleep") (see also [1])
or if they are already dead1 (aka "zombie processes" in Unix).
1The Old New Thing: Why do some process stay in Task Manager after they've been killed?